Home / 339,947.41-469,287.85-215,830.72

Finding the Fourth Proportional to 339,947.41, 469,287.85 and 215,830.72

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Solution

The fourth proportional to 339,947.41, 469,287.85 and 215,830.72 is: 297,948.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,947.41 : 469,287.85 = 215,830.72 : x
  2. Step 2: Convert to fraction form
    339,947.41/469,287.85 = 215,830.72/x
  3. Step 3: Cross multiply
    339,947.41x = 469,287.85 × 215,830.72
  4. Step 4: Simplify right side
    339,947.41x = 101,286,734,552.75
  5. Step 5: Solve for x
    x = 101,286,734,552.75/339,947.41
  6. Step 6: Final answer
    x = 297,948.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.