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Finding the Fourth Proportional to 471,003.48, 649,978.67 and 256,138.92

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Solution

The fourth proportional to 471,003.48, 649,978.67 and 256,138.92 is: 353,468.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,003.48 : 649,978.67 = 256,138.92 : x
  2. Step 2: Convert to fraction form
    471,003.48/649,978.67 = 256,138.92/x
  3. Step 3: Cross multiply
    471,003.48x = 649,978.67 × 256,138.92
  4. Step 4: Simplify right side
    471,003.48x = 166,484,833,276.14
  5. Step 5: Solve for x
    x = 166,484,833,276.14/471,003.48
  6. Step 6: Final answer
    x = 353,468.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.