Home / 434,870.31-652,366.97-135,381.12

Finding the Fourth Proportional to 434,870.31, 652,366.97 and 135,381.12

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Solution

The fourth proportional to 434,870.31, 652,366.97 and 135,381.12 is: 203,090.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,870.31 : 652,366.97 = 135,381.12 : x
  2. Step 2: Convert to fraction form
    434,870.31/652,366.97 = 135,381.12/x
  3. Step 3: Cross multiply
    434,870.31x = 652,366.97 × 135,381.12
  4. Step 4: Simplify right side
    434,870.31x = 88,318,170,372.70
  5. Step 5: Solve for x
    x = 88,318,170,372.70/434,870.31
  6. Step 6: Final answer
    x = 203,090.83

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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.