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Finding the Fourth Proportional to 363,722.60, 545,324.70 and 163,879.40

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Solution

The fourth proportional to 363,722.60, 545,324.70 and 163,879.40 is: 245,702.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,722.60 : 545,324.70 = 163,879.40 : x
  2. Step 2: Convert to fraction form
    363,722.60/545,324.70 = 163,879.40/x
  3. Step 3: Cross multiply
    363,722.60x = 545,324.70 × 163,879.40
  4. Step 4: Simplify right side
    363,722.60x = 89,367,484,641.18
  5. Step 5: Solve for x
    x = 89,367,484,641.18/363,722.60
  6. Step 6: Final answer
    x = 245,702.31

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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.