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Finding the Fourth Proportional to 833.49, 1,250.25 and 217.16

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Solution

The fourth proportional to 833.49, 1,250.25 and 217.16 is: 325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.49 : 1,250.25 = 217.16 : x
  2. Step 2: Convert to fraction form
    833.49/1,250.25 = 217.16/x
  3. Step 3: Cross multiply
    833.49x = 1,250.25 × 217.16
  4. Step 4: Simplify right side
    833.49x = 271,501.16
  5. Step 5: Solve for x
    x = 271,501.16/833.49
  6. Step 6: Final answer
    x = 325.74

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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.