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Finding the Fourth Proportional to 522,873.70, 784,310.55 and 168,142.30

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Solution

The fourth proportional to 522,873.70, 784,310.55 and 168,142.30 is: 252,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,873.70 : 784,310.55 = 168,142.30 : x
  2. Step 2: Convert to fraction form
    522,873.70/784,310.55 = 168,142.30/x
  3. Step 3: Cross multiply
    522,873.70x = 784,310.55 × 168,142.30
  4. Step 4: Simplify right side
    522,873.70x = 131,875,779,791.27
  5. Step 5: Solve for x
    x = 131,875,779,791.27/522,873.70
  6. Step 6: Final answer
    x = 252,213.45

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Similar ratio
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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.