Home / 298,629.60-447,934.80-98,959.20

Finding the Fourth Proportional to 298,629.60, 447,934.80 and 98,959.20

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Solution

The fourth proportional to 298,629.60, 447,934.80 and 98,959.20 is: 148,435.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,629.60 : 447,934.80 = 98,959.20 : x
  2. Step 2: Convert to fraction form
    298,629.60/447,934.80 = 98,959.20/x
  3. Step 3: Cross multiply
    298,629.60x = 447,934.80 × 98,959.20
  4. Step 4: Simplify right side
    298,629.60x = 44,327,269,460.16
  5. Step 5: Solve for x
    x = 44,327,269,460.16/298,629.60
  6. Step 6: Final answer
    x = 148,435.62

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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.