Home / 319,465.45-479,147.39-106,215.62

Finding the Fourth Proportional to 319,465.45, 479,147.39 and 106,215.62

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Solution

The fourth proportional to 319,465.45, 479,147.39 and 106,215.62 is: 159,306.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,465.45 : 479,147.39 = 106,215.62 : x
  2. Step 2: Convert to fraction form
    319,465.45/479,147.39 = 106,215.62/x
  3. Step 3: Cross multiply
    319,465.45x = 479,147.39 × 106,215.62
  4. Step 4: Simplify right side
    319,465.45x = 50,892,936,569.15
  5. Step 5: Solve for x
    x = 50,892,936,569.15/319,465.45
  6. Step 6: Final answer
    x = 159,306.55

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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.