Home / 454,717.11-681,888-155,221.84

Finding the Fourth Proportional to 454,717.11, 681,888 and 155,221.84

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Solution

The fourth proportional to 454,717.11, 681,888 and 155,221.84 is: 232,768.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,717.11 : 681,888 = 155,221.84 : x
  2. Step 2: Convert to fraction form
    454,717.11/681,888 = 155,221.84/x
  3. Step 3: Cross multiply
    454,717.11x = 681,888 × 155,221.84
  4. Step 4: Simplify right side
    454,717.11x = 105,843,910,033.92
  5. Step 5: Solve for x
    x = 105,843,910,033.92/454,717.11
  6. Step 6: Final answer
    x = 232,768.70

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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.