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Finding the Fourth Proportional to 265,256.19, 397,880.64 and 115,493.27

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Solution

The fourth proportional to 265,256.19, 397,880.64 and 115,493.27 is: 173,238.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,256.19 : 397,880.64 = 115,493.27 : x
  2. Step 2: Convert to fraction form
    265,256.19/397,880.64 = 115,493.27/x
  3. Step 3: Cross multiply
    265,256.19x = 397,880.64 × 115,493.27
  4. Step 4: Simplify right side
    265,256.19x = 45,952,534,193.89
  5. Step 5: Solve for x
    x = 45,952,534,193.89/265,256.19
  6. Step 6: Final answer
    x = 173,238.31

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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.