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Finding the Fourth Proportional to 444.61, 669.55 and 372.18

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Solution

The fourth proportional to 444.61, 669.55 and 372.18 is: 560.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.61 : 669.55 = 372.18 : x
  2. Step 2: Convert to fraction form
    444.61/669.55 = 372.18/x
  3. Step 3: Cross multiply
    444.61x = 669.55 × 372.18
  4. Step 4: Simplify right side
    444.61x = 249,193.12
  5. Step 5: Solve for x
    x = 249,193.12/444.61
  6. Step 6: Final answer
    x = 560.48

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.