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Finding the Fourth Proportional to 329,854.80, 455,200.50 and 178,951.80

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Solution

The fourth proportional to 329,854.80, 455,200.50 and 178,951.80 is: 246,953.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,854.80 : 455,200.50 = 178,951.80 : x
  2. Step 2: Convert to fraction form
    329,854.80/455,200.50 = 178,951.80/x
  3. Step 3: Cross multiply
    329,854.80x = 455,200.50 × 178,951.80
  4. Step 4: Simplify right side
    329,854.80x = 81,458,948,835.90
  5. Step 5: Solve for x
    x = 81,458,948,835.90/329,854.80
  6. Step 6: Final answer
    x = 246,953.96

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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.