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Finding the Fourth Proportional to 243,856.73, 365,820.08 and 75,390.21

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Solution

The fourth proportional to 243,856.73, 365,820.08 and 75,390.21 is: 113,096.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,856.73 : 365,820.08 = 75,390.21 : x
  2. Step 2: Convert to fraction form
    243,856.73/365,820.08 = 75,390.21/x
  3. Step 3: Cross multiply
    243,856.73x = 365,820.08 × 75,390.21
  4. Step 4: Simplify right side
    243,856.73x = 27,579,252,276.47
  5. Step 5: Solve for x
    x = 27,579,252,276.47/243,856.73
  6. Step 6: Final answer
    x = 113,096.13

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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.