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Finding the Fourth Proportional to 495,809.37, 743,654.09 and 136,009.51

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Solution

The fourth proportional to 495,809.37, 743,654.09 and 136,009.51 is: 203,997.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,809.37 : 743,654.09 = 136,009.51 : x
  2. Step 2: Convert to fraction form
    495,809.37/743,654.09 = 136,009.51/x
  3. Step 3: Cross multiply
    495,809.37x = 743,654.09 × 136,009.51
  4. Step 4: Simplify right side
    495,809.37x = 101,144,025,851.21
  5. Step 5: Solve for x
    x = 101,144,025,851.21/495,809.37
  6. Step 6: Final answer
    x = 203,997.81

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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.