Home / 435,780.20-653,670.30-155,196.20

Finding the Fourth Proportional to 435,780.20, 653,670.30 and 155,196.20

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Solution

The fourth proportional to 435,780.20, 653,670.30 and 155,196.20 is: 232,794.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,780.20 : 653,670.30 = 155,196.20 : x
  2. Step 2: Convert to fraction form
    435,780.20/653,670.30 = 155,196.20/x
  3. Step 3: Cross multiply
    435,780.20x = 653,670.30 × 155,196.20
  4. Step 4: Simplify right side
    435,780.20x = 101,447,146,612.86
  5. Step 5: Solve for x
    x = 101,447,146,612.86/435,780.20
  6. Step 6: Final answer
    x = 232,794.30

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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.