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Finding the Fourth Proportional to 367,036.80, 550,377.20 and 215,283.47

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Solution

The fourth proportional to 367,036.80, 550,377.20 and 215,283.47 is: 322,820.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,036.80 : 550,377.20 = 215,283.47 : x
  2. Step 2: Convert to fraction form
    367,036.80/550,377.20 = 215,283.47/x
  3. Step 3: Cross multiply
    367,036.80x = 550,377.20 × 215,283.47
  4. Step 4: Simplify right side
    367,036.80x = 118,487,109,596.58
  5. Step 5: Solve for x
    x = 118,487,109,596.58/367,036.80
  6. Step 6: Final answer
    x = 322,820.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.