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Finding the Fourth Proportional to 377,617.59, 521,112.42 and 207,850.50

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Solution

The fourth proportional to 377,617.59, 521,112.42 and 207,850.50 is: 286,833.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,617.59 : 521,112.42 = 207,850.50 : x
  2. Step 2: Convert to fraction form
    377,617.59/521,112.42 = 207,850.50/x
  3. Step 3: Cross multiply
    377,617.59x = 521,112.42 × 207,850.50
  4. Step 4: Simplify right side
    377,617.59x = 108,313,477,053.21
  5. Step 5: Solve for x
    x = 108,313,477,053.21/377,617.59
  6. Step 6: Final answer
    x = 286,833.77

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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.