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Finding the Fourth Proportional to 600.75, 829.10 and 338.78

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Solution

The fourth proportional to 600.75, 829.10 and 338.78 is: 467.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.75 : 829.10 = 338.78 : x
  2. Step 2: Convert to fraction form
    600.75/829.10 = 338.78/x
  3. Step 3: Cross multiply
    600.75x = 829.10 × 338.78
  4. Step 4: Simplify right side
    600.75x = 280,885.42
  5. Step 5: Solve for x
    x = 280,885.42/600.75
  6. Step 6: Final answer
    x = 467.56

Related Problems

Find fourth proportional to 300.38, 414.55 and 169.39
Half scale
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Double scale
Find fourth proportional to 601.75, 830.48 and 339.78
Similar ratio
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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.