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Finding the Fourth Proportional to 610.36, 915.39 and 240.25

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Solution

The fourth proportional to 610.36, 915.39 and 240.25 is: 360.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.36 : 915.39 = 240.25 : x
  2. Step 2: Convert to fraction form
    610.36/915.39 = 240.25/x
  3. Step 3: Cross multiply
    610.36x = 915.39 × 240.25
  4. Step 4: Simplify right side
    610.36x = 219,922.45
  5. Step 5: Solve for x
    x = 219,922.45/610.36
  6. Step 6: Final answer
    x = 360.32

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1.5x scale

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.