Home / 276,904.85-415,351.31-77,219.91

Finding the Fourth Proportional to 276,904.85, 415,351.31 and 77,219.91

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Solution

The fourth proportional to 276,904.85, 415,351.31 and 77,219.91 is: 115,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,904.85 : 415,351.31 = 77,219.91 : x
  2. Step 2: Convert to fraction form
    276,904.85/415,351.31 = 77,219.91/x
  3. Step 3: Cross multiply
    276,904.85x = 415,351.31 × 77,219.91
  4. Step 4: Simplify right side
    276,904.85x = 32,073,390,390.48
  5. Step 5: Solve for x
    x = 32,073,390,390.48/276,904.85
  6. Step 6: Final answer
    x = 115,828.20

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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.