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Finding the Fourth Proportional to 454,661.86, 681,992.67 and 155,142.41

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Solution

The fourth proportional to 454,661.86, 681,992.67 and 155,142.41 is: 232,713.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,661.86 : 681,992.67 = 155,142.41 : x
  2. Step 2: Convert to fraction form
    454,661.86/681,992.67 = 155,142.41/x
  3. Step 3: Cross multiply
    454,661.86x = 681,992.67 × 155,142.41
  4. Step 4: Simplify right side
    454,661.86x = 105,805,986,426.14
  5. Step 5: Solve for x
    x = 105,805,986,426.14/454,661.86
  6. Step 6: Final answer
    x = 232,713.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.