Home / 282,545.82-389,913.38-155,229.62

Finding the Fourth Proportional to 282,545.82, 389,913.38 and 155,229.62

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Solution

The fourth proportional to 282,545.82, 389,913.38 and 155,229.62 is: 214,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,545.82 : 389,913.38 = 155,229.62 : x
  2. Step 2: Convert to fraction form
    282,545.82/389,913.38 = 155,229.62/x
  3. Step 3: Cross multiply
    282,545.82x = 389,913.38 × 155,229.62
  4. Step 4: Simplify right side
    282,545.82x = 60,526,103,084.60
  5. Step 5: Solve for x
    x = 60,526,103,084.60/282,545.82
  6. Step 6: Final answer
    x = 214,216.95

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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.