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Finding the Fourth Proportional to 383,825.43, 575,169.51 and 155,843.79

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Solution

The fourth proportional to 383,825.43, 575,169.51 and 155,843.79 is: 233,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,825.43 : 575,169.51 = 155,843.79 : x
  2. Step 2: Convert to fraction form
    383,825.43/575,169.51 = 155,843.79/x
  3. Step 3: Cross multiply
    383,825.43x = 575,169.51 × 155,843.79
  4. Step 4: Simplify right side
    383,825.43x = 89,636,596,330.84
  5. Step 5: Solve for x
    x = 89,636,596,330.84/383,825.43
  6. Step 6: Final answer
    x = 233,534.80

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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.