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Finding the Fourth Proportional to 832.49, 1,248.51 and 247.47

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Solution

The fourth proportional to 832.49, 1,248.51 and 247.47 is: 371.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.49 : 1,248.51 = 247.47 : x
  2. Step 2: Convert to fraction form
    832.49/1,248.51 = 247.47/x
  3. Step 3: Cross multiply
    832.49x = 1,248.51 × 247.47
  4. Step 4: Simplify right side
    832.49x = 308,968.77
  5. Step 5: Solve for x
    x = 308,968.77/832.49
  6. Step 6: Final answer
    x = 371.14

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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.