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Finding the Fourth Proportional to 590.34, 885.72 and 316.95

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Solution

The fourth proportional to 590.34, 885.72 and 316.95 is: 475.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.34 : 885.72 = 316.95 : x
  2. Step 2: Convert to fraction form
    590.34/885.72 = 316.95/x
  3. Step 3: Cross multiply
    590.34x = 885.72 × 316.95
  4. Step 4: Simplify right side
    590.34x = 280,728.95
  5. Step 5: Solve for x
    x = 280,728.95/590.34
  6. Step 6: Final answer
    x = 475.54

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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.