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Finding the Fourth Proportional to 360,013.94, 496,447.11 and 309,194.94

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Solution

The fourth proportional to 360,013.94, 496,447.11 and 309,194.94 is: 426,369.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,013.94 : 496,447.11 = 309,194.94 : x
  2. Step 2: Convert to fraction form
    360,013.94/496,447.11 = 309,194.94/x
  3. Step 3: Cross multiply
    360,013.94x = 496,447.11 × 309,194.94
  4. Step 4: Simplify right side
    360,013.94x = 153,498,934,389.62
  5. Step 5: Solve for x
    x = 153,498,934,389.62/360,013.94
  6. Step 6: Final answer
    x = 426,369.42

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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.