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Finding the Fourth Proportional to 500,114.72, 690,159.48 and 273,774.80

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Solution

The fourth proportional to 500,114.72, 690,159.48 and 273,774.80 is: 377,809.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,114.72 : 690,159.48 = 273,774.80 : x
  2. Step 2: Convert to fraction form
    500,114.72/690,159.48 = 273,774.80/x
  3. Step 3: Cross multiply
    500,114.72x = 690,159.48 × 273,774.80
  4. Step 4: Simplify right side
    500,114.72x = 188,948,273,605.10
  5. Step 5: Solve for x
    x = 188,948,273,605.10/500,114.72
  6. Step 6: Final answer
    x = 377,809.86

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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.