Home / 288,535.68-398,199.85-159,471.38

Finding the Fourth Proportional to 288,535.68, 398,199.85 and 159,471.38

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Solution

The fourth proportional to 288,535.68, 398,199.85 and 159,471.38 is: 220,081.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,535.68 : 398,199.85 = 159,471.38 : x
  2. Step 2: Convert to fraction form
    288,535.68/398,199.85 = 159,471.38/x
  3. Step 3: Cross multiply
    288,535.68x = 398,199.85 × 159,471.38
  4. Step 4: Simplify right side
    288,535.68x = 63,501,480,108.02
  5. Step 5: Solve for x
    x = 63,501,480,108.02/288,535.68
  6. Step 6: Final answer
    x = 220,081.90

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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.