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Finding the Fourth Proportional to 265,011.60, 397,519.77 and 75,471.81

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Solution

The fourth proportional to 265,011.60, 397,519.77 and 75,471.81 is: 113,208.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,011.60 : 397,519.77 = 75,471.81 : x
  2. Step 2: Convert to fraction form
    265,011.60/397,519.77 = 75,471.81/x
  3. Step 3: Cross multiply
    265,011.60x = 397,519.77 × 75,471.81
  4. Step 4: Simplify right side
    265,011.60x = 30,001,536,552.68
  5. Step 5: Solve for x
    x = 30,001,536,552.68/265,011.60
  6. Step 6: Final answer
    x = 113,208.39

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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.