Home / 268,477.31-370,489.21-147,617.75

Finding the Fourth Proportional to 268,477.31, 370,489.21 and 147,617.75

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Solution

The fourth proportional to 268,477.31, 370,489.21 and 147,617.75 is: 203,707.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,477.31 : 370,489.21 = 147,617.75 : x
  2. Step 2: Convert to fraction form
    268,477.31/370,489.21 = 147,617.75/x
  3. Step 3: Cross multiply
    268,477.31x = 370,489.21 × 147,617.75
  4. Step 4: Simplify right side
    268,477.31x = 54,690,784,136.66
  5. Step 5: Solve for x
    x = 54,690,784,136.66/268,477.31
  6. Step 6: Final answer
    x = 203,707.28

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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.