Home / 220,691.22-304,861.32-212,498.16

Finding the Fourth Proportional to 220,691.22, 304,861.32 and 212,498.16

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Solution

The fourth proportional to 220,691.22, 304,861.32 and 212,498.16 is: 293,543.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,691.22 : 304,861.32 = 212,498.16 : x
  2. Step 2: Convert to fraction form
    220,691.22/304,861.32 = 212,498.16/x
  3. Step 3: Cross multiply
    220,691.22x = 304,861.32 × 212,498.16
  4. Step 4: Simplify right side
    220,691.22x = 64,782,469,555.17
  5. Step 5: Solve for x
    x = 64,782,469,555.17/220,691.22
  6. Step 6: Final answer
    x = 293,543.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.