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Finding the Fourth Proportional to 424.76, 586.20 and 250.24

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Solution

The fourth proportional to 424.76, 586.20 and 250.24 is: 345.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.76 : 586.20 = 250.24 : x
  2. Step 2: Convert to fraction form
    424.76/586.20 = 250.24/x
  3. Step 3: Cross multiply
    424.76x = 586.20 × 250.24
  4. Step 4: Simplify right side
    424.76x = 146,690.69
  5. Step 5: Solve for x
    x = 146,690.69/424.76
  6. Step 6: Final answer
    x = 345.35

Related Problems

Find fourth proportional to 212.38, 293.10 and 125.12
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.