Home / 288,977.92-398,790.19-159,925.78

Finding the Fourth Proportional to 288,977.92, 398,790.19 and 159,925.78

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Solution

The fourth proportional to 288,977.92, 398,790.19 and 159,925.78 is: 220,697.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,977.92 : 398,790.19 = 159,925.78 : x
  2. Step 2: Convert to fraction form
    288,977.92/398,790.19 = 159,925.78/x
  3. Step 3: Cross multiply
    288,977.92x = 398,790.19 × 159,925.78
  4. Step 4: Simplify right side
    288,977.92x = 63,776,832,192.10
  5. Step 5: Solve for x
    x = 63,776,832,192.10/288,977.92
  6. Step 6: Final answer
    x = 220,697.94

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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.