Home / 443,246.46-664,511.13-139,485.66

Finding the Fourth Proportional to 443,246.46, 664,511.13 and 139,485.66

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Solution

The fourth proportional to 443,246.46, 664,511.13 and 139,485.66 is: 209,115.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,246.46 : 664,511.13 = 139,485.66 : x
  2. Step 2: Convert to fraction form
    443,246.46/664,511.13 = 139,485.66/x
  3. Step 3: Cross multiply
    443,246.46x = 664,511.13 × 139,485.66
  4. Step 4: Simplify right side
    443,246.46x = 92,689,773,545.40
  5. Step 5: Solve for x
    x = 92,689,773,545.40/443,246.46
  6. Step 6: Final answer
    x = 209,115.65

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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.