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Finding the Fourth Proportional to 617.63, 926.58 and 344.12

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Solution

The fourth proportional to 617.63, 926.58 and 344.12 is: 516.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.63 : 926.58 = 344.12 : x
  2. Step 2: Convert to fraction form
    617.63/926.58 = 344.12/x
  3. Step 3: Cross multiply
    617.63x = 926.58 × 344.12
  4. Step 4: Simplify right side
    617.63x = 318,854.71
  5. Step 5: Solve for x
    x = 318,854.71/617.63
  6. Step 6: Final answer
    x = 516.26

Related Problems

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Half scale
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Double scale
Find fourth proportional to 618.63, 928.08 and 345.12
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.