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Finding the Fourth Proportional to 151,172.88, 226,619.40 and 66,888.36

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Solution

The fourth proportional to 151,172.88, 226,619.40 and 66,888.36 is: 100,270.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,172.88 : 226,619.40 = 66,888.36 : x
  2. Step 2: Convert to fraction form
    151,172.88/226,619.40 = 66,888.36/x
  3. Step 3: Cross multiply
    151,172.88x = 226,619.40 × 66,888.36
  4. Step 4: Simplify right side
    151,172.88x = 15,158,200,010.18
  5. Step 5: Solve for x
    x = 15,158,200,010.18/151,172.88
  6. Step 6: Final answer
    x = 100,270.63

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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.