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Finding the Fourth Proportional to 485,242.47, 669,625.58 and 270,377.96

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Solution

The fourth proportional to 485,242.47, 669,625.58 and 270,377.96 is: 373,116.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,242.47 : 669,625.58 = 270,377.96 : x
  2. Step 2: Convert to fraction form
    485,242.47/669,625.58 = 270,377.96/x
  3. Step 3: Cross multiply
    485,242.47x = 669,625.58 × 270,377.96
  4. Step 4: Simplify right side
    485,242.47x = 181,051,995,612.03
  5. Step 5: Solve for x
    x = 181,051,995,612.03/485,242.47
  6. Step 6: Final answer
    x = 373,116.55

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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.