Home / 422,948.08-634,564.30-156,730.04

Finding the Fourth Proportional to 422,948.08, 634,564.30 and 156,730.04

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Solution

The fourth proportional to 422,948.08, 634,564.30 and 156,730.04 is: 235,147.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,948.08 : 634,564.30 = 156,730.04 : x
  2. Step 2: Convert to fraction form
    422,948.08/634,564.30 = 156,730.04/x
  3. Step 3: Cross multiply
    422,948.08x = 634,564.30 × 156,730.04
  4. Step 4: Simplify right side
    422,948.08x = 99,455,288,121.57
  5. Step 5: Solve for x
    x = 99,455,288,121.57/422,948.08
  6. Step 6: Final answer
    x = 235,147.75

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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.