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Finding the Fourth Proportional to 473.03, 652.69 and 315.89

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Solution

The fourth proportional to 473.03, 652.69 and 315.89 is: 435.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.03 : 652.69 = 315.89 : x
  2. Step 2: Convert to fraction form
    473.03/652.69 = 315.89/x
  3. Step 3: Cross multiply
    473.03x = 652.69 × 315.89
  4. Step 4: Simplify right side
    473.03x = 206,178.24
  5. Step 5: Solve for x
    x = 206,178.24/473.03
  6. Step 6: Final answer
    x = 435.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.