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Finding the Fourth Proportional to 362,212.80, 542,930.40 and 137,486.40

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Solution

The fourth proportional to 362,212.80, 542,930.40 and 137,486.40 is: 206,082.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,212.80 : 542,930.40 = 137,486.40 : x
  2. Step 2: Convert to fraction form
    362,212.80/542,930.40 = 137,486.40/x
  3. Step 3: Cross multiply
    362,212.80x = 542,930.40 × 137,486.40
  4. Step 4: Simplify right side
    362,212.80x = 74,645,546,146.56
  5. Step 5: Solve for x
    x = 74,645,546,146.56/362,212.80
  6. Step 6: Final answer
    x = 206,082.02

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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.