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Finding the Fourth Proportional to 500,172.96, 690,238.71 and 273,818.46

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Solution

The fourth proportional to 500,172.96, 690,238.71 and 273,818.46 is: 377,869.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,172.96 : 690,238.71 = 273,818.46 : x
  2. Step 2: Convert to fraction form
    500,172.96/690,238.71 = 273,818.46/x
  3. Step 3: Cross multiply
    500,172.96x = 690,238.71 × 273,818.46
  4. Step 4: Simplify right side
    500,172.96x = 189,000,100,604.59
  5. Step 5: Solve for x
    x = 189,000,100,604.59/500,172.96
  6. Step 6: Final answer
    x = 377,869.49

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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.