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Finding the Fourth Proportional to 500,171.63, 690,236.88 and 273,817.13

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Solution

The fourth proportional to 500,171.63, 690,236.88 and 273,817.13 is: 377,867.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,171.63 : 690,236.88 = 273,817.13 : x
  2. Step 2: Convert to fraction form
    500,171.63/690,236.88 = 273,817.13/x
  3. Step 3: Cross multiply
    500,171.63x = 690,236.88 × 273,817.13
  4. Step 4: Simplify right side
    500,171.63x = 188,998,677,023.76
  5. Step 5: Solve for x
    x = 188,998,677,023.76/500,171.63
  6. Step 6: Final answer
    x = 377,867.65

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1.5x scale

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.