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Finding the Fourth Proportional to 288,993.29, 398,890.97 and 168,158.00

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Solution

The fourth proportional to 288,993.29, 398,890.97 and 168,158.00 is: 232,104.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,993.29 : 398,890.97 = 168,158.00 : x
  2. Step 2: Convert to fraction form
    288,993.29/398,890.97 = 168,158.00/x
  3. Step 3: Cross multiply
    288,993.29x = 398,890.97 × 168,158.00
  4. Step 4: Simplify right side
    288,993.29x = 67,076,707,161.94
  5. Step 5: Solve for x
    x = 67,076,707,161.94/288,993.29
  6. Step 6: Final answer
    x = 232,104.72

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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.