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Finding the Fourth Proportional to 288,583.70, 398,244.26 and 161,259.28

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Solution

The fourth proportional to 288,583.70, 398,244.26 and 161,259.28 is: 222,537.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,583.70 : 398,244.26 = 161,259.28 : x
  2. Step 2: Convert to fraction form
    288,583.70/398,244.26 = 161,259.28/x
  3. Step 3: Cross multiply
    288,583.70x = 398,244.26 × 161,259.28
  4. Step 4: Simplify right side
    288,583.70x = 64,220,582,039.27
  5. Step 5: Solve for x
    x = 64,220,582,039.27/288,583.70
  6. Step 6: Final answer
    x = 222,537.11

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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.