Home / 321,947.10-482,920.65-188,891.10

Finding the Fourth Proportional to 321,947.10, 482,920.65 and 188,891.10

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Solution

The fourth proportional to 321,947.10, 482,920.65 and 188,891.10 is: 283,336.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,947.10 : 482,920.65 = 188,891.10 : x
  2. Step 2: Convert to fraction form
    321,947.10/482,920.65 = 188,891.10/x
  3. Step 3: Cross multiply
    321,947.10x = 482,920.65 × 188,891.10
  4. Step 4: Simplify right side
    321,947.10x = 91,219,412,791.22
  5. Step 5: Solve for x
    x = 91,219,412,791.22/321,947.10
  6. Step 6: Final answer
    x = 283,336.65

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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.