Home / 372,385.27-513,929.49-219,472.69

Finding the Fourth Proportional to 372,385.27, 513,929.49 and 219,472.69

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Solution

The fourth proportional to 372,385.27, 513,929.49 and 219,472.69 is: 302,894.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,385.27 : 513,929.49 = 219,472.69 : x
  2. Step 2: Convert to fraction form
    372,385.27/513,929.49 = 219,472.69/x
  3. Step 3: Cross multiply
    372,385.27x = 513,929.49 × 219,472.69
  4. Step 4: Simplify right side
    372,385.27x = 112,793,487,640.63
  5. Step 5: Solve for x
    x = 112,793,487,640.63/372,385.27
  6. Step 6: Final answer
    x = 302,894.60

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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.