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Finding the Fourth Proportional to 243,007.68, 335,350.80 and 135,577.72

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Solution

The fourth proportional to 243,007.68, 335,350.80 and 135,577.72 is: 187,097.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,007.68 : 335,350.80 = 135,577.72 : x
  2. Step 2: Convert to fraction form
    243,007.68/335,350.80 = 135,577.72/x
  3. Step 3: Cross multiply
    243,007.68x = 335,350.80 × 135,577.72
  4. Step 4: Simplify right side
    243,007.68x = 45,466,096,864.18
  5. Step 5: Solve for x
    x = 45,466,096,864.18/243,007.68
  6. Step 6: Final answer
    x = 187,097.37

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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.