Home / 319,131.26-478,778.91-119,454.50

Finding the Fourth Proportional to 319,131.26, 478,778.91 and 119,454.50

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Solution

The fourth proportional to 319,131.26, 478,778.91 and 119,454.50 is: 179,212.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,131.26 : 478,778.91 = 119,454.50 : x
  2. Step 2: Convert to fraction form
    319,131.26/478,778.91 = 119,454.50/x
  3. Step 3: Cross multiply
    319,131.26x = 478,778.91 × 119,454.50
  4. Step 4: Simplify right side
    319,131.26x = 57,192,295,304.60
  5. Step 5: Solve for x
    x = 57,192,295,304.60/319,131.26
  6. Step 6: Final answer
    x = 179,212.45

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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.