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Finding the Fourth Proportional to 363,719.60, 545,320.20 and 163,876.40

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Solution

The fourth proportional to 363,719.60, 545,320.20 and 163,876.40 is: 245,697.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,719.60 : 545,320.20 = 163,876.40 : x
  2. Step 2: Convert to fraction form
    363,719.60/545,320.20 = 163,876.40/x
  3. Step 3: Cross multiply
    363,719.60x = 545,320.20 × 163,876.40
  4. Step 4: Simplify right side
    363,719.60x = 89,365,111,223.28
  5. Step 5: Solve for x
    x = 89,365,111,223.28/363,719.60
  6. Step 6: Final answer
    x = 245,697.82

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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.