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Finding the Fourth Proportional to 513.58, 708.88 and 336.76

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Solution

The fourth proportional to 513.58, 708.88 and 336.76 is: 464.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    513.58 : 708.88 = 336.76 : x
  2. Step 2: Convert to fraction form
    513.58/708.88 = 336.76/x
  3. Step 3: Cross multiply
    513.58x = 708.88 × 336.76
  4. Step 4: Simplify right side
    513.58x = 238,722.43
  5. Step 5: Solve for x
    x = 238,722.43/513.58
  6. Step 6: Final answer
    x = 464.82

Related Problems

Find fourth proportional to 256.79, 354.44 and 168.38
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.