Home / 220,915.95-304,864.32-125,422.65

Finding the Fourth Proportional to 220,915.95, 304,864.32 and 125,422.65

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Solution

The fourth proportional to 220,915.95, 304,864.32 and 125,422.65 is: 173,083.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,915.95 : 304,864.32 = 125,422.65 : x
  2. Step 2: Convert to fraction form
    220,915.95/304,864.32 = 125,422.65/x
  3. Step 3: Cross multiply
    220,915.95x = 304,864.32 × 125,422.65
  4. Step 4: Simplify right side
    220,915.95x = 38,236,890,904.85
  5. Step 5: Solve for x
    x = 38,236,890,904.85/220,915.95
  6. Step 6: Final answer
    x = 173,083.43

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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.