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Finding the Fourth Proportional to 750.73, 1,125.88 and 223.74

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Solution

The fourth proportional to 750.73, 1,125.88 and 223.74 is: 335.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.73 : 1,125.88 = 223.74 : x
  2. Step 2: Convert to fraction form
    750.73/1,125.88 = 223.74/x
  3. Step 3: Cross multiply
    750.73x = 1,125.88 × 223.74
  4. Step 4: Simplify right side
    750.73x = 251,904.31
  5. Step 5: Solve for x
    x = 251,904.31/750.73
  6. Step 6: Final answer
    x = 335.55

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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.