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Finding the Fourth Proportional to 377,604.62, 521,109.15 and 207,854.54

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Solution

The fourth proportional to 377,604.62, 521,109.15 and 207,854.54 is: 286,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,604.62 : 521,109.15 = 207,854.54 : x
  2. Step 2: Convert to fraction form
    377,604.62/521,109.15 = 207,854.54/x
  3. Step 3: Cross multiply
    377,604.62x = 521,109.15 × 207,854.54
  4. Step 4: Simplify right side
    377,604.62x = 108,314,902,663.04
  5. Step 5: Solve for x
    x = 108,314,902,663.04/377,604.62
  6. Step 6: Final answer
    x = 286,847.40

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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.