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Finding the Fourth Proportional to 637.98, 957.10 and 227.10

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Solution

The fourth proportional to 637.98, 957.10 and 227.10 is: 340.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.98 : 957.10 = 227.10 : x
  2. Step 2: Convert to fraction form
    637.98/957.10 = 227.10/x
  3. Step 3: Cross multiply
    637.98x = 957.10 × 227.10
  4. Step 4: Simplify right side
    637.98x = 217,357.41
  5. Step 5: Solve for x
    x = 217,357.41/637.98
  6. Step 6: Final answer
    x = 340.70

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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.