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Finding the Fourth Proportional to 215,078.40, 322,247.04 and 167,786.88

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Solution

The fourth proportional to 215,078.40, 322,247.04 and 167,786.88 is: 251,391.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,078.40 : 322,247.04 = 167,786.88 : x
  2. Step 2: Convert to fraction form
    215,078.40/322,247.04 = 167,786.88/x
  3. Step 3: Cross multiply
    215,078.40x = 322,247.04 × 167,786.88
  4. Step 4: Simplify right side
    215,078.40x = 54,068,825,430.84
  5. Step 5: Solve for x
    x = 54,068,825,430.84/215,078.40
  6. Step 6: Final answer
    x = 251,391.24

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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.