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Finding the Fourth Proportional to 353.66, 530.48 and 93.66

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Solution

The fourth proportional to 353.66, 530.48 and 93.66 is: 140.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.66 : 530.48 = 93.66 : x
  2. Step 2: Convert to fraction form
    353.66/530.48 = 93.66/x
  3. Step 3: Cross multiply
    353.66x = 530.48 × 93.66
  4. Step 4: Simplify right side
    353.66x = 49,684.29
  5. Step 5: Solve for x
    x = 49,684.29/353.66
  6. Step 6: Final answer
    x = 140.49

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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.