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Finding the Fourth Proportional to 312,366.97, 468,550.42 and 75,709.65

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Solution

The fourth proportional to 312,366.97, 468,550.42 and 75,709.65 is: 113,564.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,366.97 : 468,550.42 = 75,709.65 : x
  2. Step 2: Convert to fraction form
    312,366.97/468,550.42 = 75,709.65/x
  3. Step 3: Cross multiply
    312,366.97x = 468,550.42 × 75,709.65
  4. Step 4: Simplify right side
    312,366.97x = 35,473,788,305.55
  5. Step 5: Solve for x
    x = 35,473,788,305.55/312,366.97
  6. Step 6: Final answer
    x = 113,564.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.