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Finding the Fourth Proportional to 215,241.84, 322,874.24 and 65,470.68

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Solution

The fourth proportional to 215,241.84, 322,874.24 and 65,470.68 is: 98,209.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,241.84 : 322,874.24 = 65,470.68 : x
  2. Step 2: Convert to fraction form
    215,241.84/322,874.24 = 65,470.68/x
  3. Step 3: Cross multiply
    215,241.84x = 322,874.24 × 65,470.68
  4. Step 4: Simplify right side
    215,241.84x = 21,138,796,047.28
  5. Step 5: Solve for x
    x = 21,138,796,047.28/215,241.84
  6. Step 6: Final answer
    x = 98,209.51

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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.