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Finding the Fourth Proportional to 664,335.15, 996,502.73 and 243,556.35

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Solution

The fourth proportional to 664,335.15, 996,502.73 and 243,556.35 is: 365,334.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,335.15 : 996,502.73 = 243,556.35 : x
  2. Step 2: Convert to fraction form
    664,335.15/996,502.73 = 243,556.35/x
  3. Step 3: Cross multiply
    664,335.15x = 996,502.73 × 243,556.35
  4. Step 4: Simplify right side
    664,335.15x = 242,704,566,466.05
  5. Step 5: Solve for x
    x = 242,704,566,466.05/664,335.15
  6. Step 6: Final answer
    x = 365,334.53

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.