Home / 298,760.16-412,380-177,921.12

Finding the Fourth Proportional to 298,760.16, 412,380 and 177,921.12

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Solution

The fourth proportional to 298,760.16, 412,380 and 177,921.12 is: 245,585.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,760.16 : 412,380 = 177,921.12 : x
  2. Step 2: Convert to fraction form
    298,760.16/412,380 = 177,921.12/x
  3. Step 3: Cross multiply
    298,760.16x = 412,380 × 177,921.12
  4. Step 4: Simplify right side
    298,760.16x = 73,371,111,465.60
  5. Step 5: Solve for x
    x = 73,371,111,465.60/298,760.16
  6. Step 6: Final answer
    x = 245,585.33

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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.