Home / 288,791.30-432,895.35-131,132.90

Finding the Fourth Proportional to 288,791.30, 432,895.35 and 131,132.90

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Solution

The fourth proportional to 288,791.30, 432,895.35 and 131,132.90 is: 196,566.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,791.30 : 432,895.35 = 131,132.90 : x
  2. Step 2: Convert to fraction form
    288,791.30/432,895.35 = 131,132.90/x
  3. Step 3: Cross multiply
    288,791.30x = 432,895.35 × 131,132.90
  4. Step 4: Simplify right side
    288,791.30x = 56,766,822,642.02
  5. Step 5: Solve for x
    x = 56,766,822,642.02/288,791.30
  6. Step 6: Final answer
    x = 196,566.94

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1.5x scale

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.