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Finding the Fourth Proportional to 373,531.62, 515,959.80 and 302,180.73

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Solution

The fourth proportional to 373,531.62, 515,959.80 and 302,180.73 is: 417,402.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,531.62 : 515,959.80 = 302,180.73 : x
  2. Step 2: Convert to fraction form
    373,531.62/515,959.80 = 302,180.73/x
  3. Step 3: Cross multiply
    373,531.62x = 515,959.80 × 302,180.73
  4. Step 4: Simplify right side
    373,531.62x = 155,913,109,014.65
  5. Step 5: Solve for x
    x = 155,913,109,014.65/373,531.62
  6. Step 6: Final answer
    x = 417,402.71

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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.