Home / 268,842.05-370,999.20-147,980.75

Finding the Fourth Proportional to 268,842.05, 370,999.20 and 147,980.75

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Solution

The fourth proportional to 268,842.05, 370,999.20 and 147,980.75 is: 204,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,842.05 : 370,999.20 = 147,980.75 : x
  2. Step 2: Convert to fraction form
    268,842.05/370,999.20 = 147,980.75/x
  3. Step 3: Cross multiply
    268,842.05x = 370,999.20 × 147,980.75
  4. Step 4: Simplify right side
    268,842.05x = 54,900,738,010.40
  5. Step 5: Solve for x
    x = 54,900,738,010.40/268,842.05
  6. Step 6: Final answer
    x = 204,211.87

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1.5x scale

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.