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Finding the Fourth Proportional to 215,662.84, 297,610.70 and 120,167.48

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Solution

The fourth proportional to 215,662.84, 297,610.70 and 120,167.48 is: 165,828.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,662.84 : 297,610.70 = 120,167.48 : x
  2. Step 2: Convert to fraction form
    215,662.84/297,610.70 = 120,167.48/x
  3. Step 3: Cross multiply
    215,662.84x = 297,610.70 × 120,167.48
  4. Step 4: Simplify right side
    215,662.84x = 35,763,127,840.04
  5. Step 5: Solve for x
    x = 35,763,127,840.04/215,662.84
  6. Step 6: Final answer
    x = 165,828.88

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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.