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Finding the Fourth Proportional to 500,170.76, 690,235.65 and 273,816.26

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Solution

The fourth proportional to 500,170.76, 690,235.65 and 273,816.26 is: 377,866.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,170.76 : 690,235.65 = 273,816.26 : x
  2. Step 2: Convert to fraction form
    500,170.76/690,235.65 = 273,816.26/x
  3. Step 3: Cross multiply
    500,170.76x = 690,235.65 × 273,816.26
  4. Step 4: Simplify right side
    500,170.76x = 188,997,740,750.49
  5. Step 5: Solve for x
    x = 188,997,740,750.49/500,170.76
  6. Step 6: Final answer
    x = 377,866.44

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Double scale
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Similar ratio
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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.