Home / 518,815.27-778,246.76-158,960.35

Finding the Fourth Proportional to 518,815.27, 778,246.76 and 158,960.35

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Solution

The fourth proportional to 518,815.27, 778,246.76 and 158,960.35 is: 238,447.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,815.27 : 778,246.76 = 158,960.35 : x
  2. Step 2: Convert to fraction form
    518,815.27/778,246.76 = 158,960.35/x
  3. Step 3: Cross multiply
    518,815.27x = 778,246.76 × 158,960.35
  4. Step 4: Simplify right side
    518,815.27x = 123,710,377,355.97
  5. Step 5: Solve for x
    x = 123,710,377,355.97/518,815.27
  6. Step 6: Final answer
    x = 238,447.83

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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.