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Finding the Fourth Proportional to 265,145.82, 397,632.33 and 87,619.74

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Solution

The fourth proportional to 265,145.82, 397,632.33 and 87,619.74 is: 131,401.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,145.82 : 397,632.33 = 87,619.74 : x
  2. Step 2: Convert to fraction form
    265,145.82/397,632.33 = 87,619.74/x
  3. Step 3: Cross multiply
    265,145.82x = 397,632.33 × 87,619.74
  4. Step 4: Simplify right side
    265,145.82x = 34,840,441,370.19
  5. Step 5: Solve for x
    x = 34,840,441,370.19/265,145.82
  6. Step 6: Final answer
    x = 131,401.06

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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.