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Finding the Fourth Proportional to 500,270.00, 690,367.01 and 270,821.81

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Solution

The fourth proportional to 500,270.00, 690,367.01 and 270,821.81 is: 373,731.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,270.00 : 690,367.01 = 270,821.81 : x
  2. Step 2: Convert to fraction form
    500,270.00/690,367.01 = 270,821.81/x
  3. Step 3: Cross multiply
    500,270.00x = 690,367.01 × 270,821.81
  4. Step 4: Simplify right side
    500,270.00x = 186,966,443,584.30
  5. Step 5: Solve for x
    x = 186,966,443,584.30/500,270.00
  6. Step 6: Final answer
    x = 373,731.08

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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.