Home / 220,912.42-304,867.77-125,428

Finding the Fourth Proportional to 220,912.42, 304,867.77 and 125,428

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Solution

The fourth proportional to 220,912.42, 304,867.77 and 125,428 is: 173,095.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,912.42 : 304,867.77 = 125,428 : x
  2. Step 2: Convert to fraction form
    220,912.42/304,867.77 = 125,428/x
  3. Step 3: Cross multiply
    220,912.42x = 304,867.77 × 125,428
  4. Step 4: Simplify right side
    220,912.42x = 38,238,954,655.56
  5. Step 5: Solve for x
    x = 38,238,954,655.56/220,912.42
  6. Step 6: Final answer
    x = 173,095.54

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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.