Home / 386,500.20-579,491.10-176,029.80

Finding the Fourth Proportional to 386,500.20, 579,491.10 and 176,029.80

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Solution

The fourth proportional to 386,500.20, 579,491.10 and 176,029.80 is: 263,926.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,500.20 : 579,491.10 = 176,029.80 : x
  2. Step 2: Convert to fraction form
    386,500.20/579,491.10 = 176,029.80/x
  3. Step 3: Cross multiply
    386,500.20x = 579,491.10 × 176,029.80
  4. Step 4: Simplify right side
    386,500.20x = 102,007,702,434.78
  5. Step 5: Solve for x
    x = 102,007,702,434.78/386,500.20
  6. Step 6: Final answer
    x = 263,926.65

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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.