Home / 288,837.76-398,614.48-161,513.36

Finding the Fourth Proportional to 288,837.76, 398,614.48 and 161,513.36

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Solution

The fourth proportional to 288,837.76, 398,614.48 and 161,513.36 is: 222,898.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,837.76 : 398,614.48 = 161,513.36 : x
  2. Step 2: Convert to fraction form
    288,837.76/398,614.48 = 161,513.36/x
  3. Step 3: Cross multiply
    288,837.76x = 398,614.48 × 161,513.36
  4. Step 4: Simplify right side
    288,837.76x = 64,381,564,009.45
  5. Step 5: Solve for x
    x = 64,381,564,009.45/288,837.76
  6. Step 6: Final answer
    x = 222,898.71

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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.