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Finding the Fourth Proportional to 482.68, 724.26 and 190.18

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Solution

The fourth proportional to 482.68, 724.26 and 190.18 is: 285.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.68 : 724.26 = 190.18 : x
  2. Step 2: Convert to fraction form
    482.68/724.26 = 190.18/x
  3. Step 3: Cross multiply
    482.68x = 724.26 × 190.18
  4. Step 4: Simplify right side
    482.68x = 137,739.77
  5. Step 5: Solve for x
    x = 137,739.77/482.68
  6. Step 6: Final answer
    x = 285.36

Related Problems

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.