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Finding the Fourth Proportional to 386,176.60, 532,894.62 and 216,377.92

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Solution

The fourth proportional to 386,176.60, 532,894.62 and 216,377.92 is: 298,585.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,176.60 : 532,894.62 = 216,377.92 : x
  2. Step 2: Convert to fraction form
    386,176.60/532,894.62 = 216,377.92/x
  3. Step 3: Cross multiply
    386,176.60x = 532,894.62 × 216,377.92
  4. Step 4: Simplify right side
    386,176.60x = 115,306,629,454.79
  5. Step 5: Solve for x
    x = 115,306,629,454.79/386,176.60
  6. Step 6: Final answer
    x = 298,585.23

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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.