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Finding the Fourth Proportional to 143,325.86, 214,989.24 and 43,486.88

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Solution

The fourth proportional to 143,325.86, 214,989.24 and 43,486.88 is: 65,230.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,325.86 : 214,989.24 = 43,486.88 : x
  2. Step 2: Convert to fraction form
    143,325.86/214,989.24 = 43,486.88/x
  3. Step 3: Cross multiply
    143,325.86x = 214,989.24 × 43,486.88
  4. Step 4: Simplify right side
    143,325.86x = 9,349,210,124.69
  5. Step 5: Solve for x
    x = 9,349,210,124.69/143,325.86
  6. Step 6: Final answer
    x = 65,230.45

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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.