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Finding the Fourth Proportional to 252,901.80, 379,109.70 and 146,176.20

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Solution

The fourth proportional to 252,901.80, 379,109.70 and 146,176.20 is: 219,123.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,901.80 : 379,109.70 = 146,176.20 : x
  2. Step 2: Convert to fraction form
    252,901.80/379,109.70 = 146,176.20/x
  3. Step 3: Cross multiply
    252,901.80x = 379,109.70 × 146,176.20
  4. Step 4: Simplify right side
    252,901.80x = 55,416,815,329.14
  5. Step 5: Solve for x
    x = 55,416,815,329.14/252,901.80
  6. Step 6: Final answer
    x = 219,123.85

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1.5x scale

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.