Home / 306,849.06-460,323.20-90,729.72

Finding the Fourth Proportional to 306,849.06, 460,323.20 and 90,729.72

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Solution

The fourth proportional to 306,849.06, 460,323.20 and 90,729.72 is: 136,109.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,849.06 : 460,323.20 = 90,729.72 : x
  2. Step 2: Convert to fraction form
    306,849.06/460,323.20 = 90,729.72/x
  3. Step 3: Cross multiply
    306,849.06x = 460,323.20 × 90,729.72
  4. Step 4: Simplify right side
    306,849.06x = 41,764,995,272.33
  5. Step 5: Solve for x
    x = 41,764,995,272.33/306,849.06
  6. Step 6: Final answer
    x = 136,109.25

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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.