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Finding the Fourth Proportional to 732.45, 1,098.69 and 245.49

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Solution

The fourth proportional to 732.45, 1,098.69 and 245.49 is: 368.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.45 : 1,098.69 = 245.49 : x
  2. Step 2: Convert to fraction form
    732.45/1,098.69 = 245.49/x
  3. Step 3: Cross multiply
    732.45x = 1,098.69 × 245.49
  4. Step 4: Simplify right side
    732.45x = 269,717.41
  5. Step 5: Solve for x
    x = 269,717.41/732.45
  6. Step 6: Final answer
    x = 368.24

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Double scale
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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.