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Finding the Fourth Proportional to 500,172.63, 690,238.26 and 273,818.13

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Solution

The fourth proportional to 500,172.63, 690,238.26 and 273,818.13 is: 377,869.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,172.63 : 690,238.26 = 273,818.13 : x
  2. Step 2: Convert to fraction form
    500,172.63/690,238.26 = 273,818.13/x
  3. Step 3: Cross multiply
    500,172.63x = 690,238.26 × 273,818.13
  4. Step 4: Simplify right side
    500,172.63x = 188,999,749,607.65
  5. Step 5: Solve for x
    x = 188,999,749,607.65/500,172.63
  6. Step 6: Final answer
    x = 377,869.04

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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.