Home / 388,938.60-583,991.10-271,132.20

Finding the Fourth Proportional to 388,938.60, 583,991.10 and 271,132.20

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Solution

The fourth proportional to 388,938.60, 583,991.10 and 271,132.20 is: 407,104.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,938.60 : 583,991.10 = 271,132.20 : x
  2. Step 2: Convert to fraction form
    388,938.60/583,991.10 = 271,132.20/x
  3. Step 3: Cross multiply
    388,938.60x = 583,991.10 × 271,132.20
  4. Step 4: Simplify right side
    388,938.60x = 158,338,791,723.42
  5. Step 5: Solve for x
    x = 158,338,791,723.42/388,938.60
  6. Step 6: Final answer
    x = 407,104.85

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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.