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Finding the Fourth Proportional to 444.77, 613.75 and 258.25

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Solution

The fourth proportional to 444.77, 613.75 and 258.25 is: 356.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.77 : 613.75 = 258.25 : x
  2. Step 2: Convert to fraction form
    444.77/613.75 = 258.25/x
  3. Step 3: Cross multiply
    444.77x = 613.75 × 258.25
  4. Step 4: Simplify right side
    444.77x = 158,496.58
  5. Step 5: Solve for x
    x = 158,496.58/444.77
  6. Step 6: Final answer
    x = 356.36

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Find fourth proportional to 222.38, 306.87 and 129.12
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.