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Finding the Fourth Proportional to 301,231.86, 451,851.03 and 90,871.62

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Solution

The fourth proportional to 301,231.86, 451,851.03 and 90,871.62 is: 136,308.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,231.86 : 451,851.03 = 90,871.62 : x
  2. Step 2: Convert to fraction form
    301,231.86/451,851.03 = 90,871.62/x
  3. Step 3: Cross multiply
    301,231.86x = 451,851.03 × 90,871.62
  4. Step 4: Simplify right side
    301,231.86x = 41,060,435,094.77
  5. Step 5: Solve for x
    x = 41,060,435,094.77/301,231.86
  6. Step 6: Final answer
    x = 136,308.41

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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.