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Finding the Fourth Proportional to 268,580.80, 370,660.80 and 161,148.16

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Solution

The fourth proportional to 268,580.80, 370,660.80 and 161,148.16 is: 222,396.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,580.80 : 370,660.80 = 161,148.16 : x
  2. Step 2: Convert to fraction form
    268,580.80/370,660.80 = 161,148.16/x
  3. Step 3: Cross multiply
    268,580.80x = 370,660.80 × 161,148.16
  4. Step 4: Simplify right side
    268,580.80x = 59,731,305,904.13
  5. Step 5: Solve for x
    x = 59,731,305,904.13/268,580.80
  6. Step 6: Final answer
    x = 222,396.04

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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.