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Finding the Fourth Proportional to 265,846.85, 398,832.68 and 163,378.38

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Solution

The fourth proportional to 265,846.85, 398,832.68 and 163,378.38 is: 245,105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,846.85 : 398,832.68 = 163,378.38 : x
  2. Step 2: Convert to fraction form
    265,846.85/398,832.68 = 163,378.38/x
  3. Step 3: Cross multiply
    265,846.85x = 398,832.68 × 163,378.38
  4. Step 4: Simplify right side
    265,846.85x = 65,160,638,575.45
  5. Step 5: Solve for x
    x = 65,160,638,575.45/265,846.85
  6. Step 6: Final answer
    x = 245,105.93

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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.