Home / 204,019.90-306,029.85-156,780.70

Finding the Fourth Proportional to 204,019.90, 306,029.85 and 156,780.70

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Solution

The fourth proportional to 204,019.90, 306,029.85 and 156,780.70 is: 235,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,019.90 : 306,029.85 = 156,780.70 : x
  2. Step 2: Convert to fraction form
    204,019.90/306,029.85 = 156,780.70/x
  3. Step 3: Cross multiply
    204,019.90x = 306,029.85 × 156,780.70
  4. Step 4: Simplify right side
    204,019.90x = 47,979,574,103.90
  5. Step 5: Solve for x
    x = 47,979,574,103.90/204,019.90
  6. Step 6: Final answer
    x = 235,171.05

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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.