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Finding the Fourth Proportional to 610.88, 915.44 and 302.96

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Solution

The fourth proportional to 610.88, 915.44 and 302.96 is: 454.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.88 : 915.44 = 302.96 : x
  2. Step 2: Convert to fraction form
    610.88/915.44 = 302.96/x
  3. Step 3: Cross multiply
    610.88x = 915.44 × 302.96
  4. Step 4: Simplify right side
    610.88x = 277,335.61
  5. Step 5: Solve for x
    x = 277,335.61/610.88
  6. Step 6: Final answer
    x = 454.00

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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.