Home / 380,957.98-571,449.01-141,131.90

Finding the Fourth Proportional to 380,957.98, 571,449.01 and 141,131.90

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Solution

The fourth proportional to 380,957.98, 571,449.01 and 141,131.90 is: 211,702.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,957.98 : 571,449.01 = 141,131.90 : x
  2. Step 2: Convert to fraction form
    380,957.98/571,449.01 = 141,131.90/x
  3. Step 3: Cross multiply
    380,957.98x = 571,449.01 × 141,131.90
  4. Step 4: Simplify right side
    380,957.98x = 80,649,682,461.97
  5. Step 5: Solve for x
    x = 80,649,682,461.97/380,957.98
  6. Step 6: Final answer
    x = 211,702.31

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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.