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Finding the Fourth Proportional to 485,240.22, 669,622.48 and 270,375.71

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Solution

The fourth proportional to 485,240.22, 669,622.48 and 270,375.71 is: 373,113.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,240.22 : 669,622.48 = 270,375.71 : x
  2. Step 2: Convert to fraction form
    485,240.22/669,622.48 = 270,375.71/x
  3. Step 3: Cross multiply
    485,240.22x = 669,622.48 × 270,375.71
  4. Step 4: Simplify right side
    485,240.22x = 181,049,649,437.91
  5. Step 5: Solve for x
    x = 181,049,649,437.91/485,240.22
  6. Step 6: Final answer
    x = 373,113.44

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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.