Home / 347,827.60-521,914.20-137,472.40

Finding the Fourth Proportional to 347,827.60, 521,914.20 and 137,472.40

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Solution

The fourth proportional to 347,827.60, 521,914.20 and 137,472.40 is: 206,276.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,827.60 : 521,914.20 = 137,472.40 : x
  2. Step 2: Convert to fraction form
    347,827.60/521,914.20 = 137,472.40/x
  3. Step 3: Cross multiply
    347,827.60x = 521,914.20 × 137,472.40
  4. Step 4: Simplify right side
    347,827.60x = 71,748,797,668.08
  5. Step 5: Solve for x
    x = 71,748,797,668.08/347,827.60
  6. Step 6: Final answer
    x = 206,276.90

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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.