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Finding the Fourth Proportional to 339,565.57, 468,405.34 and 212,019.73

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Solution

The fourth proportional to 339,565.57, 468,405.34 and 212,019.73 is: 292,465.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,565.57 : 468,405.34 = 212,019.73 : x
  2. Step 2: Convert to fraction form
    339,565.57/468,405.34 = 212,019.73/x
  3. Step 3: Cross multiply
    339,565.57x = 468,405.34 × 212,019.73
  4. Step 4: Simplify right side
    339,565.57x = 99,311,172,016.30
  5. Step 5: Solve for x
    x = 99,311,172,016.30/339,565.57
  6. Step 6: Final answer
    x = 292,465.38

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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.