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Finding the Fourth Proportional to 143,307.22, 214,961.34 and 43,468.28

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Solution

The fourth proportional to 143,307.22, 214,961.34 and 43,468.28 is: 65,202.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,307.22 : 214,961.34 = 43,468.28 : x
  2. Step 2: Convert to fraction form
    143,307.22/214,961.34 = 43,468.28/x
  3. Step 3: Cross multiply
    143,307.22x = 214,961.34 × 43,468.28
  4. Step 4: Simplify right side
    143,307.22x = 9,343,999,716.30
  5. Step 5: Solve for x
    x = 9,343,999,716.30/143,307.22
  6. Step 6: Final answer
    x = 65,202.57

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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.