Home / 387,116.20-580,111.62-170,711.74

Finding the Fourth Proportional to 387,116.20, 580,111.62 and 170,711.74

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Solution

The fourth proportional to 387,116.20, 580,111.62 and 170,711.74 is: 255,819.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,116.20 : 580,111.62 = 170,711.74 : x
  2. Step 2: Convert to fraction form
    387,116.20/580,111.62 = 170,711.74/x
  3. Step 3: Cross multiply
    387,116.20x = 580,111.62 × 170,711.74
  4. Step 4: Simplify right side
    387,116.20x = 99,031,864,044.42
  5. Step 5: Solve for x
    x = 99,031,864,044.42/387,116.20
  6. Step 6: Final answer
    x = 255,819.48

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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.