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Finding the Fourth Proportional to 243,995.39, 365,982.32 and 66,502.40

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Solution

The fourth proportional to 243,995.39, 365,982.32 and 66,502.40 is: 99,750.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,995.39 : 365,982.32 = 66,502.40 : x
  2. Step 2: Convert to fraction form
    243,995.39/365,982.32 = 66,502.40/x
  3. Step 3: Cross multiply
    243,995.39x = 365,982.32 × 66,502.40
  4. Step 4: Simplify right side
    243,995.39x = 24,338,702,026.77
  5. Step 5: Solve for x
    x = 24,338,702,026.77/243,995.39
  6. Step 6: Final answer
    x = 99,750.66

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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.