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Finding the Fourth Proportional to 590.28, 885.96 and 316.68

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Solution

The fourth proportional to 590.28, 885.96 and 316.68 is: 475.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.28 : 885.96 = 316.68 : x
  2. Step 2: Convert to fraction form
    590.28/885.96 = 316.68/x
  3. Step 3: Cross multiply
    590.28x = 885.96 × 316.68
  4. Step 4: Simplify right side
    590.28x = 280,565.81
  5. Step 5: Solve for x
    x = 280,565.81/590.28
  6. Step 6: Final answer
    x = 475.31

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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.