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Finding the Fourth Proportional to 288,953.29, 398,733.89 and 161,604.28

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Solution

The fourth proportional to 288,953.29, 398,733.89 and 161,604.28 is: 223,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,953.29 : 398,733.89 = 161,604.28 : x
  2. Step 2: Convert to fraction form
    288,953.29/398,733.89 = 161,604.28/x
  3. Step 3: Cross multiply
    288,953.29x = 398,733.89 × 161,604.28
  4. Step 4: Simplify right side
    288,953.29x = 64,437,103,804.47
  5. Step 5: Solve for x
    x = 64,437,103,804.47/288,953.29
  6. Step 6: Final answer
    x = 223,001.80

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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.