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Finding the Fourth Proportional to 214,157.74, 321,010.56 and 71,868.11

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Solution

The fourth proportional to 214,157.74, 321,010.56 and 71,868.11 is: 107,726.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,157.74 : 321,010.56 = 71,868.11 : x
  2. Step 2: Convert to fraction form
    214,157.74/321,010.56 = 71,868.11/x
  3. Step 3: Cross multiply
    214,157.74x = 321,010.56 × 71,868.11
  4. Step 4: Simplify right side
    214,157.74x = 23,070,422,237.24
  5. Step 5: Solve for x
    x = 23,070,422,237.24/214,157.74
  6. Step 6: Final answer
    x = 107,726.31

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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.