Home / 312,212.12-468,318.20-75,554.82

Finding the Fourth Proportional to 312,212.12, 468,318.20 and 75,554.82

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Solution

The fourth proportional to 312,212.12, 468,318.20 and 75,554.82 is: 113,332.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,212.12 : 468,318.20 = 75,554.82 : x
  2. Step 2: Convert to fraction form
    312,212.12/468,318.20 = 75,554.82/x
  3. Step 3: Cross multiply
    312,212.12x = 468,318.20 × 75,554.82
  4. Step 4: Simplify right side
    312,212.12x = 35,383,696,925.95
  5. Step 5: Solve for x
    x = 35,383,696,925.95/312,212.12
  6. Step 6: Final answer
    x = 113,332.24

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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.