Home / 215,828.28-297,851.58-120,351.96

Finding the Fourth Proportional to 215,828.28, 297,851.58 and 120,351.96

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Solution

The fourth proportional to 215,828.28, 297,851.58 and 120,351.96 is: 166,090.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,828.28 : 297,851.58 = 120,351.96 : x
  2. Step 2: Convert to fraction form
    215,828.28/297,851.58 = 120,351.96/x
  3. Step 3: Cross multiply
    215,828.28x = 297,851.58 × 120,351.96
  4. Step 4: Simplify right side
    215,828.28x = 35,847,021,442.10
  5. Step 5: Solve for x
    x = 35,847,021,442.10/215,828.28
  6. Step 6: Final answer
    x = 166,090.47

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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.