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Finding the Fourth Proportional to 307,440.88, 424,268.41 and 173,304.88

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Solution

The fourth proportional to 307,440.88, 424,268.41 and 173,304.88 is: 239,160.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,440.88 : 424,268.41 = 173,304.88 : x
  2. Step 2: Convert to fraction form
    307,440.88/424,268.41 = 173,304.88/x
  3. Step 3: Cross multiply
    307,440.88x = 424,268.41 × 173,304.88
  4. Step 4: Simplify right side
    307,440.88x = 73,527,783,761.50
  5. Step 5: Solve for x
    x = 73,527,783,761.50/307,440.88
  6. Step 6: Final answer
    x = 239,160.73

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1.5x scale

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.