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Finding the Fourth Proportional to 342,318.52, 513,327.98 and 162,455.49

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Solution

The fourth proportional to 342,318.52, 513,327.98 and 162,455.49 is: 243,612.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,318.52 : 513,327.98 = 162,455.49 : x
  2. Step 2: Convert to fraction form
    342,318.52/513,327.98 = 162,455.49/x
  3. Step 3: Cross multiply
    342,318.52x = 513,327.98 × 162,455.49
  4. Step 4: Simplify right side
    342,318.52x = 83,392,948,521.61
  5. Step 5: Solve for x
    x = 83,392,948,521.61/342,318.52
  6. Step 6: Final answer
    x = 243,612.14

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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.