Home / 288,974.67-398,785.70-159,922.54

Finding the Fourth Proportional to 288,974.67, 398,785.70 and 159,922.54

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Solution

The fourth proportional to 288,974.67, 398,785.70 and 159,922.54 is: 220,693.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,974.67 : 398,785.70 = 159,922.54 : x
  2. Step 2: Convert to fraction form
    288,974.67/398,785.70 = 159,922.54/x
  3. Step 3: Cross multiply
    288,974.67x = 398,785.70 × 159,922.54
  4. Step 4: Simplify right side
    288,974.67x = 63,774,820,465.56
  5. Step 5: Solve for x
    x = 63,774,820,465.56/288,974.67
  6. Step 6: Final answer
    x = 220,693.46

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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.