Home / 242,557.28-334,705.20-135,123.20

Finding the Fourth Proportional to 242,557.28, 334,705.20 and 135,123.20

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Solution

The fourth proportional to 242,557.28, 334,705.20 and 135,123.20 is: 186,456.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,557.28 : 334,705.20 = 135,123.20 : x
  2. Step 2: Convert to fraction form
    242,557.28/334,705.20 = 135,123.20/x
  3. Step 3: Cross multiply
    242,557.28x = 334,705.20 × 135,123.20
  4. Step 4: Simplify right side
    242,557.28x = 45,226,437,680.64
  5. Step 5: Solve for x
    x = 45,226,437,680.64/242,557.28
  6. Step 6: Final answer
    x = 186,456.73

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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.