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Finding the Fourth Proportional to 882.01, 1,216.65 and 550.18

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Solution

The fourth proportional to 882.01, 1,216.65 and 550.18 is: 758.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.01 : 1,216.65 = 550.18 : x
  2. Step 2: Convert to fraction form
    882.01/1,216.65 = 550.18/x
  3. Step 3: Cross multiply
    882.01x = 1,216.65 × 550.18
  4. Step 4: Simplify right side
    882.01x = 669,376.50
  5. Step 5: Solve for x
    x = 669,376.50/882.01
  6. Step 6: Final answer
    x = 758.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.