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Finding the Fourth Proportional to 519,332.73, 778,878.81 and 164,280.57

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Solution

The fourth proportional to 519,332.73, 778,878.81 and 164,280.57 is: 246,382.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,332.73 : 778,878.81 = 164,280.57 : x
  2. Step 2: Convert to fraction form
    519,332.73/778,878.81 = 164,280.57/x
  3. Step 3: Cross multiply
    519,332.73x = 778,878.81 × 164,280.57
  4. Step 4: Simplify right side
    519,332.73x = 127,954,654,867.72
  5. Step 5: Solve for x
    x = 127,954,654,867.72/519,332.73
  6. Step 6: Final answer
    x = 246,382.81

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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.