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Finding the Fourth Proportional to 371,945.68, 557,886.84 and 147,245

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Solution

The fourth proportional to 371,945.68, 557,886.84 and 147,245 is: 220,854.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,945.68 : 557,886.84 = 147,245 : x
  2. Step 2: Convert to fraction form
    371,945.68/557,886.84 = 147,245/x
  3. Step 3: Cross multiply
    371,945.68x = 557,886.84 × 147,245
  4. Step 4: Simplify right side
    371,945.68x = 82,146,047,755.80
  5. Step 5: Solve for x
    x = 82,146,047,755.80/371,945.68
  6. Step 6: Final answer
    x = 220,854.96

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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.