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Finding the Fourth Proportional to 312,595.38, 468,329.31 and 192,443.22

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Solution

The fourth proportional to 312,595.38, 468,329.31 and 192,443.22 is: 288,317.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,595.38 : 468,329.31 = 192,443.22 : x
  2. Step 2: Convert to fraction form
    312,595.38/468,329.31 = 192,443.22/x
  3. Step 3: Cross multiply
    312,595.38x = 468,329.31 × 192,443.22
  4. Step 4: Simplify right side
    312,595.38x = 90,126,800,436.78
  5. Step 5: Solve for x
    x = 90,126,800,436.78/312,595.38
  6. Step 6: Final answer
    x = 288,317.76

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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.