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Finding the Fourth Proportional to 832.49, 1,248.59 and 247.48

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Solution

The fourth proportional to 832.49, 1,248.59 and 247.48 is: 371.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.49 : 1,248.59 = 247.48 : x
  2. Step 2: Convert to fraction form
    832.49/1,248.59 = 247.48/x
  3. Step 3: Cross multiply
    832.49x = 1,248.59 × 247.48
  4. Step 4: Simplify right side
    832.49x = 308,993.57
  5. Step 5: Solve for x
    x = 308,993.57/832.49
  6. Step 6: Final answer
    x = 371.17

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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.