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Finding the Fourth Proportional to 617.51, 926.57 and 252.09

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Solution

The fourth proportional to 617.51, 926.57 and 252.09 is: 378.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.51 : 926.57 = 252.09 : x
  2. Step 2: Convert to fraction form
    617.51/926.57 = 252.09/x
  3. Step 3: Cross multiply
    617.51x = 926.57 × 252.09
  4. Step 4: Simplify right side
    617.51x = 233,577.77
  5. Step 5: Solve for x
    x = 233,577.77/617.51
  6. Step 6: Final answer
    x = 378.26

Related Problems

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Half scale
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Double scale
Find fourth proportional to 618.51, 928.07 and 253.09
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.