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Finding the Fourth Proportional to 215,327.40, 322,407.90 and 168,671.40

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Solution

The fourth proportional to 215,327.40, 322,407.90 and 168,671.40 is: 252,550.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,327.40 : 322,407.90 = 168,671.40 : x
  2. Step 2: Convert to fraction form
    215,327.40/322,407.90 = 168,671.40/x
  3. Step 3: Cross multiply
    215,327.40x = 322,407.90 × 168,671.40
  4. Step 4: Simplify right side
    215,327.40x = 54,380,991,864.06
  5. Step 5: Solve for x
    x = 54,380,991,864.06/215,327.40
  6. Step 6: Final answer
    x = 252,550.26

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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.