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Finding the Fourth Proportional to 485,209.44, 669,580.17 and 270,344.91

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Solution

The fourth proportional to 485,209.44, 669,580.17 and 270,344.91 is: 373,071.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,209.44 : 669,580.17 = 270,344.91 : x
  2. Step 2: Convert to fraction form
    485,209.44/669,580.17 = 270,344.91/x
  3. Step 3: Cross multiply
    485,209.44x = 669,580.17 × 270,344.91
  4. Step 4: Simplify right side
    485,209.44x = 181,017,590,796.44
  5. Step 5: Solve for x
    x = 181,017,590,796.44/485,209.44
  6. Step 6: Final answer
    x = 373,071.04

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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.