Home / 268,779.40-370,915.86-147,929.44

Finding the Fourth Proportional to 268,779.40, 370,915.86 and 147,929.44

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Solution

The fourth proportional to 268,779.40, 370,915.86 and 147,929.44 is: 204,142.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,779.40 : 370,915.86 = 147,929.44 : x
  2. Step 2: Convert to fraction form
    268,779.40/370,915.86 = 147,929.44/x
  3. Step 3: Cross multiply
    268,779.40x = 370,915.86 × 147,929.44
  4. Step 4: Simplify right side
    268,779.40x = 54,869,375,456.92
  5. Step 5: Solve for x
    x = 54,869,375,456.92/268,779.40
  6. Step 6: Final answer
    x = 204,142.79

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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.