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Finding the Fourth Proportional to 377,659.80, 521,170.61 and 207,893.93

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Solution

The fourth proportional to 377,659.80, 521,170.61 and 207,893.93 is: 286,893.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,659.80 : 521,170.61 = 207,893.93 : x
  2. Step 2: Convert to fraction form
    377,659.80/521,170.61 = 207,893.93/x
  3. Step 3: Cross multiply
    377,659.80x = 521,170.61 × 207,893.93
  4. Step 4: Simplify right side
    377,659.80x = 108,348,202,668.08
  5. Step 5: Solve for x
    x = 108,348,202,668.08/377,659.80
  6. Step 6: Final answer
    x = 286,893.66

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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.