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Finding the Fourth Proportional to 592.17, 889.07 and 318.39

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Solution

The fourth proportional to 592.17, 889.07 and 318.39 is: 478.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.17 : 889.07 = 318.39 : x
  2. Step 2: Convert to fraction form
    592.17/889.07 = 318.39/x
  3. Step 3: Cross multiply
    592.17x = 889.07 × 318.39
  4. Step 4: Simplify right side
    592.17x = 283,069.41
  5. Step 5: Solve for x
    x = 283,069.41/592.17
  6. Step 6: Final answer
    x = 478.02

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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.