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Finding the Fourth Proportional to 532.57, 798.90 and 147.82

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Solution

The fourth proportional to 532.57, 798.90 and 147.82 is: 221.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.57 : 798.90 = 147.82 : x
  2. Step 2: Convert to fraction form
    532.57/798.90 = 147.82/x
  3. Step 3: Cross multiply
    532.57x = 798.90 × 147.82
  4. Step 4: Simplify right side
    532.57x = 118,089.77
  5. Step 5: Solve for x
    x = 118,089.77/532.57
  6. Step 6: Final answer
    x = 221.74

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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.