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Finding the Fourth Proportional to 341,572.52, 512,008.80 and 142,008.80

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Solution

The fourth proportional to 341,572.52, 512,008.80 and 142,008.80 is: 212,867.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,572.52 : 512,008.80 = 142,008.80 : x
  2. Step 2: Convert to fraction form
    341,572.52/512,008.80 = 142,008.80/x
  3. Step 3: Cross multiply
    341,572.52x = 512,008.80 × 142,008.80
  4. Step 4: Simplify right side
    341,572.52x = 72,709,755,277.44
  5. Step 5: Solve for x
    x = 72,709,755,277.44/341,572.52
  6. Step 6: Final answer
    x = 212,867.70

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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.