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Finding the Fourth Proportional to 535.58, 801.02 and 315.66

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Solution

The fourth proportional to 535.58, 801.02 and 315.66 is: 472.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.58 : 801.02 = 315.66 : x
  2. Step 2: Convert to fraction form
    535.58/801.02 = 315.66/x
  3. Step 3: Cross multiply
    535.58x = 801.02 × 315.66
  4. Step 4: Simplify right side
    535.58x = 252,853.77
  5. Step 5: Solve for x
    x = 252,853.77/535.58
  6. Step 6: Final answer
    x = 472.11

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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.