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Finding the Fourth Proportional to 288,865.57, 398,627.03 and 159,800.71

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Solution

The fourth proportional to 288,865.57, 398,627.03 and 159,800.71 is: 220,520.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,865.57 : 398,627.03 = 159,800.71 : x
  2. Step 2: Convert to fraction form
    288,865.57/398,627.03 = 159,800.71/x
  3. Step 3: Cross multiply
    288,865.57x = 398,627.03 × 159,800.71
  4. Step 4: Simplify right side
    288,865.57x = 63,700,879,627.05
  5. Step 5: Solve for x
    x = 63,700,879,627.05/288,865.57
  6. Step 6: Final answer
    x = 220,520.85

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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.