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Finding the Fourth Proportional to 562.95, 842.97 and 289.17

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Solution

The fourth proportional to 562.95, 842.97 and 289.17 is: 433.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.95 : 842.97 = 289.17 : x
  2. Step 2: Convert to fraction form
    562.95/842.97 = 289.17/x
  3. Step 3: Cross multiply
    562.95x = 842.97 × 289.17
  4. Step 4: Simplify right side
    562.95x = 243,761.63
  5. Step 5: Solve for x
    x = 243,761.63/562.95
  6. Step 6: Final answer
    x = 433.01

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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.