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Finding the Fourth Proportional to 592.40, 887.88 and 318.08

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Solution

The fourth proportional to 592.40, 887.88 and 318.08 is: 476.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.40 : 887.88 = 318.08 : x
  2. Step 2: Convert to fraction form
    592.40/887.88 = 318.08/x
  3. Step 3: Cross multiply
    592.40x = 887.88 × 318.08
  4. Step 4: Simplify right side
    592.40x = 282,416.87
  5. Step 5: Solve for x
    x = 282,416.87/592.40
  6. Step 6: Final answer
    x = 476.73

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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.