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Finding the Fourth Proportional to 270,734.40, 373,652.88 and 155,990.88

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Solution

The fourth proportional to 270,734.40, 373,652.88 and 155,990.88 is: 215,290.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,734.40 : 373,652.88 = 155,990.88 : x
  2. Step 2: Convert to fraction form
    270,734.40/373,652.88 = 155,990.88/x
  3. Step 3: Cross multiply
    270,734.40x = 373,652.88 × 155,990.88
  4. Step 4: Simplify right side
    270,734.40x = 58,286,443,551.90
  5. Step 5: Solve for x
    x = 58,286,443,551.90/270,734.40
  6. Step 6: Final answer
    x = 215,290.13

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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.