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Finding the Fourth Proportional to 143,264.89, 214,936.22 and 43,428.34

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Solution

The fourth proportional to 143,264.89, 214,936.22 and 43,428.34 is: 65,154.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,264.89 : 214,936.22 = 43,428.34 : x
  2. Step 2: Convert to fraction form
    143,264.89/214,936.22 = 43,428.34/x
  3. Step 3: Cross multiply
    143,264.89x = 214,936.22 × 43,428.34
  4. Step 4: Simplify right side
    143,264.89x = 9,334,323,240.47
  5. Step 5: Solve for x
    x = 9,334,323,240.47/143,264.89
  6. Step 6: Final answer
    x = 65,154.30

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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.