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Finding the Fourth Proportional to 542.34, 813.60 and 533.58

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Solution

The fourth proportional to 542.34, 813.60 and 533.58 is: 800.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    542.34 : 813.60 = 533.58 : x
  2. Step 2: Convert to fraction form
    542.34/813.60 = 533.58/x
  3. Step 3: Cross multiply
    542.34x = 813.60 × 533.58
  4. Step 4: Simplify right side
    542.34x = 434,120.69
  5. Step 5: Solve for x
    x = 434,120.69/542.34
  6. Step 6: Final answer
    x = 800.46

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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.