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Finding the Fourth Proportional to 522,818.20, 784,211.10 and 148,841.20

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Solution

The fourth proportional to 522,818.20, 784,211.10 and 148,841.20 is: 223,257.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,818.20 : 784,211.10 = 148,841.20 : x
  2. Step 2: Convert to fraction form
    522,818.20/784,211.10 = 148,841.20/x
  3. Step 3: Cross multiply
    522,818.20x = 784,211.10 × 148,841.20
  4. Step 4: Simplify right side
    522,818.20x = 116,722,921,177.32
  5. Step 5: Solve for x
    x = 116,722,921,177.32/522,818.20
  6. Step 6: Final answer
    x = 223,257.19

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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.