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Finding the Fourth Proportional to 339,040.80, 508,237.20 and 125,751.60

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Solution

The fourth proportional to 339,040.80, 508,237.20 and 125,751.60 is: 188,507.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,040.80 : 508,237.20 = 125,751.60 : x
  2. Step 2: Convert to fraction form
    339,040.80/508,237.20 = 125,751.60/x
  3. Step 3: Cross multiply
    339,040.80x = 508,237.20 × 125,751.60
  4. Step 4: Simplify right side
    339,040.80x = 63,911,641,079.52
  5. Step 5: Solve for x
    x = 63,911,641,079.52/339,040.80
  6. Step 6: Final answer
    x = 188,507.23

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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.