Home / 435,770.20-653,655.30-155,186.20

Finding the Fourth Proportional to 435,770.20, 653,655.30 and 155,186.20

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Solution

The fourth proportional to 435,770.20, 653,655.30 and 155,186.20 is: 232,779.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,770.20 : 653,655.30 = 155,186.20 : x
  2. Step 2: Convert to fraction form
    435,770.20/653,655.30 = 155,186.20/x
  3. Step 3: Cross multiply
    435,770.20x = 653,655.30 × 155,186.20
  4. Step 4: Simplify right side
    435,770.20x = 101,438,282,116.86
  5. Step 5: Solve for x
    x = 101,438,282,116.86/435,770.20
  6. Step 6: Final answer
    x = 232,779.30

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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.