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Finding the Fourth Proportional to 549.74, 824.37 and 207.50

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Solution

The fourth proportional to 549.74, 824.37 and 207.50 is: 311.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.74 : 824.37 = 207.50 : x
  2. Step 2: Convert to fraction form
    549.74/824.37 = 207.50/x
  3. Step 3: Cross multiply
    549.74x = 824.37 × 207.50
  4. Step 4: Simplify right side
    549.74x = 171,056.78
  5. Step 5: Solve for x
    x = 171,056.78/549.74
  6. Step 6: Final answer
    x = 311.16

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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.