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Finding the Fourth Proportional to 572.41, 851.25 and 554.18

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Solution

The fourth proportional to 572.41, 851.25 and 554.18 is: 824.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.41 : 851.25 = 554.18 : x
  2. Step 2: Convert to fraction form
    572.41/851.25 = 554.18/x
  3. Step 3: Cross multiply
    572.41x = 851.25 × 554.18
  4. Step 4: Simplify right side
    572.41x = 471,742.95
  5. Step 5: Solve for x
    x = 471,742.95/572.41
  6. Step 6: Final answer
    x = 824.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.