Home / 319,440.20-479,019.95-119,620.43

Finding the Fourth Proportional to 319,440.20, 479,019.95 and 119,620.43

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Solution

The fourth proportional to 319,440.20, 479,019.95 and 119,620.43 is: 179,378.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,440.20 : 479,019.95 = 119,620.43 : x
  2. Step 2: Convert to fraction form
    319,440.20/479,019.95 = 119,620.43/x
  3. Step 3: Cross multiply
    319,440.20x = 479,019.95 × 119,620.43
  4. Step 4: Simplify right side
    319,440.20x = 57,300,569,404.38
  5. Step 5: Solve for x
    x = 57,300,569,404.38/319,440.20
  6. Step 6: Final answer
    x = 179,378.08

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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.