Home / 422,946.08-634,561.30-156,728.04

Finding the Fourth Proportional to 422,946.08, 634,561.30 and 156,728.04

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Solution

The fourth proportional to 422,946.08, 634,561.30 and 156,728.04 is: 235,144.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,946.08 : 634,561.30 = 156,728.04 : x
  2. Step 2: Convert to fraction form
    422,946.08/634,561.30 = 156,728.04/x
  3. Step 3: Cross multiply
    422,946.08x = 634,561.30 × 156,728.04
  4. Step 4: Simplify right side
    422,946.08x = 99,453,548,808.85
  5. Step 5: Solve for x
    x = 99,453,548,808.85/422,946.08
  6. Step 6: Final answer
    x = 235,144.75

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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.