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Finding the Fourth Proportional to 617.62, 926.53 and 252.31

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Solution

The fourth proportional to 617.62, 926.53 and 252.31 is: 378.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.62 : 926.53 = 252.31 : x
  2. Step 2: Convert to fraction form
    617.62/926.53 = 252.31/x
  3. Step 3: Cross multiply
    617.62x = 926.53 × 252.31
  4. Step 4: Simplify right side
    617.62x = 233,769.84
  5. Step 5: Solve for x
    x = 233,769.84/617.62
  6. Step 6: Final answer
    x = 378.50

Related Problems

Find fourth proportional to 308.81, 463.26 and 126.15
Half scale
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Double scale
Find fourth proportional to 618.62, 928.03 and 253.31
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.