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Finding the Fourth Proportional to 242,760.65, 335,008.31 and 135,331.56

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Solution

The fourth proportional to 242,760.65, 335,008.31 and 135,331.56 is: 186,756.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,760.65 : 335,008.31 = 135,331.56 : x
  2. Step 2: Convert to fraction form
    242,760.65/335,008.31 = 135,331.56/x
  3. Step 3: Cross multiply
    242,760.65x = 335,008.31 × 135,331.56
  4. Step 4: Simplify right side
    242,760.65x = 45,337,196,528.61
  5. Step 5: Solve for x
    x = 45,337,196,528.61/242,760.65
  6. Step 6: Final answer
    x = 186,756.78

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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.