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Finding the Fourth Proportional to 265,011.59, 397,519.70 and 75,471.78

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Solution

The fourth proportional to 265,011.59, 397,519.70 and 75,471.78 is: 113,208.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,011.59 : 397,519.70 = 75,471.78 : x
  2. Step 2: Convert to fraction form
    265,011.59/397,519.70 = 75,471.78/x
  3. Step 3: Cross multiply
    265,011.59x = 397,519.70 × 75,471.78
  4. Step 4: Simplify right side
    265,011.59x = 30,001,518,966.71
  5. Step 5: Solve for x
    x = 30,001,518,966.71/265,011.59
  6. Step 6: Final answer
    x = 113,208.33

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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.