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Finding the Fourth Proportional to 351,777.60, 527,353.20 and 127,089

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Solution

The fourth proportional to 351,777.60, 527,353.20 and 127,089 is: 190,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,777.60 : 527,353.20 = 127,089 : x
  2. Step 2: Convert to fraction form
    351,777.60/527,353.20 = 127,089/x
  3. Step 3: Cross multiply
    351,777.60x = 527,353.20 × 127,089
  4. Step 4: Simplify right side
    351,777.60x = 67,020,790,834.80
  5. Step 5: Solve for x
    x = 67,020,790,834.80/351,777.60
  6. Step 6: Final answer
    x = 190,520.35

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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.