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Finding the Fourth Proportional to 356,039.40, 534,059.10 and 329,005.80

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Solution

The fourth proportional to 356,039.40, 534,059.10 and 329,005.80 is: 493,508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,039.40 : 534,059.10 = 329,005.80 : x
  2. Step 2: Convert to fraction form
    356,039.40/534,059.10 = 329,005.80/x
  3. Step 3: Cross multiply
    356,039.40x = 534,059.10 × 329,005.80
  4. Step 4: Simplify right side
    356,039.40x = 175,708,541,442.78
  5. Step 5: Solve for x
    x = 175,708,541,442.78/356,039.40
  6. Step 6: Final answer
    x = 493,508.70

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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.