Home / 500,172.21-690,237.63-273,817.71

Finding the Fourth Proportional to 500,172.21, 690,237.63 and 273,817.71

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Solution

The fourth proportional to 500,172.21, 690,237.63 and 273,817.71 is: 377,868.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,172.21 : 690,237.63 = 273,817.71 : x
  2. Step 2: Convert to fraction form
    500,172.21/690,237.63 = 273,817.71/x
  3. Step 3: Cross multiply
    500,172.21x = 690,237.63 × 273,817.71
  4. Step 4: Simplify right side
    500,172.21x = 188,999,287,202.43
  5. Step 5: Solve for x
    x = 188,999,287,202.43/500,172.21
  6. Step 6: Final answer
    x = 377,868.43

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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.