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Finding the Fourth Proportional to 542.89, 749.25 and 368.59

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Solution

The fourth proportional to 542.89, 749.25 and 368.59 is: 508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    542.89 : 749.25 = 368.59 : x
  2. Step 2: Convert to fraction form
    542.89/749.25 = 368.59/x
  3. Step 3: Cross multiply
    542.89x = 749.25 × 368.59
  4. Step 4: Simplify right side
    542.89x = 276,166.06
  5. Step 5: Solve for x
    x = 276,166.06/542.89
  6. Step 6: Final answer
    x = 508.70

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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.