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Finding the Fourth Proportional to 624.10, 936.15 and 234.10

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Solution

The fourth proportional to 624.10, 936.15 and 234.10 is: 351.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.10 : 936.15 = 234.10 : x
  2. Step 2: Convert to fraction form
    624.10/936.15 = 234.10/x
  3. Step 3: Cross multiply
    624.10x = 936.15 × 234.10
  4. Step 4: Simplify right side
    624.10x = 219,152.72
  5. Step 5: Solve for x
    x = 219,152.72/624.10
  6. Step 6: Final answer
    x = 351.15

Related Problems

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Half scale
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Double scale
Find fourth proportional to 625.10, 937.65 and 235.10
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.