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Finding the Fourth Proportional to 335,280.40, 502,920.60 and 157,728.40

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Solution

The fourth proportional to 335,280.40, 502,920.60 and 157,728.40 is: 236,592.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,280.40 : 502,920.60 = 157,728.40 : x
  2. Step 2: Convert to fraction form
    335,280.40/502,920.60 = 157,728.40/x
  3. Step 3: Cross multiply
    335,280.40x = 502,920.60 × 157,728.40
  4. Step 4: Simplify right side
    335,280.40x = 79,324,861,565.04
  5. Step 5: Solve for x
    x = 79,324,861,565.04/335,280.40
  6. Step 6: Final answer
    x = 236,592.60

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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.