Home / 215,955.30-298,018.11-120,461.94

Finding the Fourth Proportional to 215,955.30, 298,018.11 and 120,461.94

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Solution

The fourth proportional to 215,955.30, 298,018.11 and 120,461.94 is: 166,237.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,955.30 : 298,018.11 = 120,461.94 : x
  2. Step 2: Convert to fraction form
    215,955.30/298,018.11 = 120,461.94/x
  3. Step 3: Cross multiply
    215,955.30x = 298,018.11 × 120,461.94
  4. Step 4: Simplify right side
    215,955.30x = 35,899,839,685.73
  5. Step 5: Solve for x
    x = 35,899,839,685.73/215,955.30
  6. Step 6: Final answer
    x = 166,237.36

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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.