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Finding the Fourth Proportional to 362.48, 543.68 and 157.08

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Solution

The fourth proportional to 362.48, 543.68 and 157.08 is: 235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.48 : 543.68 = 157.08 : x
  2. Step 2: Convert to fraction form
    362.48/543.68 = 157.08/x
  3. Step 3: Cross multiply
    362.48x = 543.68 × 157.08
  4. Step 4: Simplify right side
    362.48x = 85,401.25
  5. Step 5: Solve for x
    x = 85,401.25/362.48
  6. Step 6: Final answer
    x = 235.60

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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.