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Finding the Fourth Proportional to 617.40, 925.62 and 293.16

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Solution

The fourth proportional to 617.40, 925.62 and 293.16 is: 439.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.40 : 925.62 = 293.16 : x
  2. Step 2: Convert to fraction form
    617.40/925.62 = 293.16/x
  3. Step 3: Cross multiply
    617.40x = 925.62 × 293.16
  4. Step 4: Simplify right side
    617.40x = 271,354.76
  5. Step 5: Solve for x
    x = 271,354.76/617.40
  6. Step 6: Final answer
    x = 439.51

Related Problems

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Half scale
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Double scale
Find fourth proportional to 618.40, 927.12 and 294.16
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.