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Finding the Fourth Proportional to 542.24, 813.34 and 152.24

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Solution

The fourth proportional to 542.24, 813.34 and 152.24 is: 228.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    542.24 : 813.34 = 152.24 : x
  2. Step 2: Convert to fraction form
    542.24/813.34 = 152.24/x
  3. Step 3: Cross multiply
    542.24x = 813.34 × 152.24
  4. Step 4: Simplify right side
    542.24x = 123,822.88
  5. Step 5: Solve for x
    x = 123,822.88/542.24
  6. Step 6: Final answer
    x = 228.35

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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.