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Finding the Fourth Proportional to 373,782.60, 516,204.90 and 288,052.20

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Solution

The fourth proportional to 373,782.60, 516,204.90 and 288,052.20 is: 397,808.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,782.60 : 516,204.90 = 288,052.20 : x
  2. Step 2: Convert to fraction form
    373,782.60/516,204.90 = 288,052.20/x
  3. Step 3: Cross multiply
    373,782.60x = 516,204.90 × 288,052.20
  4. Step 4: Simplify right side
    373,782.60x = 148,693,957,095.78
  5. Step 5: Solve for x
    x = 148,693,957,095.78/373,782.60
  6. Step 6: Final answer
    x = 397,808.66

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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.