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Finding the Fourth Proportional to 562.84, 844.25 and 288.78

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Solution

The fourth proportional to 562.84, 844.25 and 288.78 is: 433.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.84 : 844.25 = 288.78 : x
  2. Step 2: Convert to fraction form
    562.84/844.25 = 288.78/x
  3. Step 3: Cross multiply
    562.84x = 844.25 × 288.78
  4. Step 4: Simplify right side
    562.84x = 243,803.24
  5. Step 5: Solve for x
    x = 243,803.24/562.84
  6. Step 6: Final answer
    x = 433.17

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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.