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Finding the Fourth Proportional to 882.43, 1,323.65 and 266.14

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Solution

The fourth proportional to 882.43, 1,323.65 and 266.14 is: 399.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.43 : 1,323.65 = 266.14 : x
  2. Step 2: Convert to fraction form
    882.43/1,323.65 = 266.14/x
  3. Step 3: Cross multiply
    882.43x = 1,323.65 × 266.14
  4. Step 4: Simplify right side
    882.43x = 352,276.21
  5. Step 5: Solve for x
    x = 352,276.21/882.43
  6. Step 6: Final answer
    x = 399.21

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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.