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Finding the Fourth Proportional to 254,937.78, 351,822.66 and 140,221.26

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Solution

The fourth proportional to 254,937.78, 351,822.66 and 140,221.26 is: 193,510.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,937.78 : 351,822.66 = 140,221.26 : x
  2. Step 2: Convert to fraction form
    254,937.78/351,822.66 = 140,221.26/x
  3. Step 3: Cross multiply
    254,937.78x = 351,822.66 × 140,221.26
  4. Step 4: Simplify right side
    254,937.78x = 49,333,016,681.75
  5. Step 5: Solve for x
    x = 49,333,016,681.75/254,937.78
  6. Step 6: Final answer
    x = 193,510.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.