Home / 288,975.67-398,787.08-159,923.54

Finding the Fourth Proportional to 288,975.67, 398,787.08 and 159,923.54

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Solution

The fourth proportional to 288,975.67, 398,787.08 and 159,923.54 is: 220,694.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,975.67 : 398,787.08 = 159,923.54 : x
  2. Step 2: Convert to fraction form
    288,975.67/398,787.08 = 159,923.54/x
  3. Step 3: Cross multiply
    288,975.67x = 398,787.08 × 159,923.54
  4. Step 4: Simplify right side
    288,975.67x = 63,775,441,539.86
  5. Step 5: Solve for x
    x = 63,775,441,539.86/288,975.67
  6. Step 6: Final answer
    x = 220,694.85

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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.