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Finding the Fourth Proportional to 288,491.52, 398,133.54 and 173,806.26

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Solution

The fourth proportional to 288,491.52, 398,133.54 and 173,806.26 is: 239,861.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,491.52 : 398,133.54 = 173,806.26 : x
  2. Step 2: Convert to fraction form
    288,491.52/398,133.54 = 173,806.26/x
  3. Step 3: Cross multiply
    288,491.52x = 398,133.54 × 173,806.26
  4. Step 4: Simplify right side
    288,491.52x = 69,198,100,698.93
  5. Step 5: Solve for x
    x = 69,198,100,698.93/288,491.52
  6. Step 6: Final answer
    x = 239,861.82

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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.