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Finding the Fourth Proportional to 366.55, 549.28 and 357.50

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Solution

The fourth proportional to 366.55, 549.28 and 357.50 is: 535.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.55 : 549.28 = 357.50 : x
  2. Step 2: Convert to fraction form
    366.55/549.28 = 357.50/x
  3. Step 3: Cross multiply
    366.55x = 549.28 × 357.50
  4. Step 4: Simplify right side
    366.55x = 196,363.07
  5. Step 5: Solve for x
    x = 196,363.07/366.55
  6. Step 6: Final answer
    x = 535.71

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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.