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Finding the Fourth Proportional to 592.08, 888.68 and 318.40

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Solution

The fourth proportional to 592.08, 888.68 and 318.40 is: 477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.08 : 888.68 = 318.40 : x
  2. Step 2: Convert to fraction form
    592.08/888.68 = 318.40/x
  3. Step 3: Cross multiply
    592.08x = 888.68 × 318.40
  4. Step 4: Simplify right side
    592.08x = 282,955.71
  5. Step 5: Solve for x
    x = 282,955.71/592.08
  6. Step 6: Final answer
    x = 477.90

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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.