Home / 288,936.95-398,733.62-159,884.78

Finding the Fourth Proportional to 288,936.95, 398,733.62 and 159,884.78

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Solution

The fourth proportional to 288,936.95, 398,733.62 and 159,884.78 is: 220,641.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,936.95 : 398,733.62 = 159,884.78 : x
  2. Step 2: Convert to fraction form
    288,936.95/398,733.62 = 159,884.78/x
  3. Step 3: Cross multiply
    288,936.95x = 398,733.62 × 159,884.78
  4. Step 4: Simplify right side
    288,936.95x = 63,751,434,319.21
  5. Step 5: Solve for x
    x = 63,751,434,319.21/288,936.95
  6. Step 6: Final answer
    x = 220,641.34

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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.