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Finding the Fourth Proportional to 288,461.76, 397,989.84 and 167,579.52

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Solution

The fourth proportional to 288,461.76, 397,989.84 and 167,579.52 is: 231,208.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,461.76 : 397,989.84 = 167,579.52 : x
  2. Step 2: Convert to fraction form
    288,461.76/397,989.84 = 167,579.52/x
  3. Step 3: Cross multiply
    288,461.76x = 397,989.84 × 167,579.52
  4. Step 4: Simplify right side
    288,461.76x = 66,694,946,352.08
  5. Step 5: Solve for x
    x = 66,694,946,352.08/288,461.76
  6. Step 6: Final answer
    x = 231,208.97

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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.