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Finding the Fourth Proportional to 288,863.57, 398,624.27 and 159,798.71

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Solution

The fourth proportional to 288,863.57, 398,624.27 and 159,798.71 is: 220,518.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,863.57 : 398,624.27 = 159,798.71 : x
  2. Step 2: Convert to fraction form
    288,863.57/398,624.27 = 159,798.71/x
  3. Step 3: Cross multiply
    288,863.57x = 398,624.27 × 159,798.71
  4. Step 4: Simplify right side
    288,863.57x = 63,699,641,328.58
  5. Step 5: Solve for x
    x = 63,699,641,328.58/288,863.57
  6. Step 6: Final answer
    x = 220,518.09

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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.