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Finding the Fourth Proportional to 624.55, 936.26 and 259.10

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Solution

The fourth proportional to 624.55, 936.26 and 259.10 is: 388.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.55 : 936.26 = 259.10 : x
  2. Step 2: Convert to fraction form
    624.55/936.26 = 259.10/x
  3. Step 3: Cross multiply
    624.55x = 936.26 × 259.10
  4. Step 4: Simplify right side
    624.55x = 242,584.97
  5. Step 5: Solve for x
    x = 242,584.97/624.55
  6. Step 6: Final answer
    x = 388.42

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.