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Finding the Fourth Proportional to 381,555, 572,343.44 and 101,072.25

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Solution

The fourth proportional to 381,555, 572,343.44 and 101,072.25 is: 151,611.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,555 : 572,343.44 = 101,072.25 : x
  2. Step 2: Convert to fraction form
    381,555/572,343.44 = 101,072.25/x
  3. Step 3: Cross multiply
    381,555x = 572,343.44 × 101,072.25
  4. Step 4: Simplify right side
    381,555x = 57,848,038,748.18
  5. Step 5: Solve for x
    x = 57,848,038,748.18/381,555
  6. Step 6: Final answer
    x = 151,611.27

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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.