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Finding the Fourth Proportional to 454,783.91, 682,175.13 and 155,239.62

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Solution

The fourth proportional to 454,783.91, 682,175.13 and 155,239.62 is: 232,859.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,783.91 : 682,175.13 = 155,239.62 : x
  2. Step 2: Convert to fraction form
    454,783.91/682,175.13 = 155,239.62/x
  3. Step 3: Cross multiply
    454,783.91x = 682,175.13 × 155,239.62
  4. Step 4: Simplify right side
    454,783.91x = 105,900,607,954.65
  5. Step 5: Solve for x
    x = 105,900,607,954.65/454,783.91
  6. Step 6: Final answer
    x = 232,859.18

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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.