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Finding the Fourth Proportional to 347,145.60, 520,891.20 and 197,500.80

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Solution

The fourth proportional to 347,145.60, 520,891.20 and 197,500.80 is: 296,349.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,145.60 : 520,891.20 = 197,500.80 : x
  2. Step 2: Convert to fraction form
    347,145.60/520,891.20 = 197,500.80/x
  3. Step 3: Cross multiply
    347,145.60x = 520,891.20 × 197,500.80
  4. Step 4: Simplify right side
    347,145.60x = 102,876,428,712.96
  5. Step 5: Solve for x
    x = 102,876,428,712.96/347,145.60
  6. Step 6: Final answer
    x = 296,349.51

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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.