Home / 312,215.12-468,322.70-75,557.82

Finding the Fourth Proportional to 312,215.12, 468,322.70 and 75,557.82

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Solution

The fourth proportional to 312,215.12, 468,322.70 and 75,557.82 is: 113,336.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,215.12 : 468,322.70 = 75,557.82 : x
  2. Step 2: Convert to fraction form
    312,215.12/468,322.70 = 75,557.82/x
  3. Step 3: Cross multiply
    312,215.12x = 468,322.70 × 75,557.82
  4. Step 4: Simplify right side
    312,215.12x = 35,385,442,268.51
  5. Step 5: Solve for x
    x = 35,385,442,268.51/312,215.12
  6. Step 6: Final answer
    x = 113,336.73

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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.