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Finding the Fourth Proportional to 243,435.28, 335,883.10 and 141,400.12

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Solution

The fourth proportional to 243,435.28, 335,883.10 and 141,400.12 is: 195,098.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,435.28 : 335,883.10 = 141,400.12 : x
  2. Step 2: Convert to fraction form
    243,435.28/335,883.10 = 141,400.12/x
  3. Step 3: Cross multiply
    243,435.28x = 335,883.10 × 141,400.12
  4. Step 4: Simplify right side
    243,435.28x = 47,493,910,645.97
  5. Step 5: Solve for x
    x = 47,493,910,645.97/243,435.28
  6. Step 6: Final answer
    x = 195,098.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.