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Finding the Fourth Proportional to 624.40, 936.44 and 234.38

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Solution

The fourth proportional to 624.40, 936.44 and 234.38 is: 351.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.40 : 936.44 = 234.38 : x
  2. Step 2: Convert to fraction form
    624.40/936.44 = 234.38/x
  3. Step 3: Cross multiply
    624.40x = 936.44 × 234.38
  4. Step 4: Simplify right side
    624.40x = 219,483.98
  5. Step 5: Solve for x
    x = 219,483.98/624.40
  6. Step 6: Final answer
    x = 351.51

Related Problems

Find fourth proportional to 312.20, 468.22 and 117.19
Half scale
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Double scale
Find fourth proportional to 625.40, 937.93 and 235.38
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.