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Finding the Fourth Proportional to 611.75, 915.81 and 337.16

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Solution

The fourth proportional to 611.75, 915.81 and 337.16 is: 504.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.75 : 915.81 = 337.16 : x
  2. Step 2: Convert to fraction form
    611.75/915.81 = 337.16/x
  3. Step 3: Cross multiply
    611.75x = 915.81 × 337.16
  4. Step 4: Simplify right side
    611.75x = 308,775.52
  5. Step 5: Solve for x
    x = 308,775.52/611.75
  6. Step 6: Final answer
    x = 504.74

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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.