Home / 386,123.28-532,534.20-271,780.44

Finding the Fourth Proportional to 386,123.28, 532,534.20 and 271,780.44

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Solution

The fourth proportional to 386,123.28, 532,534.20 and 271,780.44 is: 374,834.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,123.28 : 532,534.20 = 271,780.44 : x
  2. Step 2: Convert to fraction form
    386,123.28/532,534.20 = 271,780.44/x
  3. Step 3: Cross multiply
    386,123.28x = 532,534.20 × 271,780.44
  4. Step 4: Simplify right side
    386,123.28x = 144,732,379,191.05
  5. Step 5: Solve for x
    x = 144,732,379,191.05/386,123.28
  6. Step 6: Final answer
    x = 374,834.64

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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.