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Finding the Fourth Proportional to 251,757.98, 347,434.81 and 137,046.07

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Solution

The fourth proportional to 251,757.98, 347,434.81 and 137,046.07 is: 189,128.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,757.98 : 347,434.81 = 137,046.07 : x
  2. Step 2: Convert to fraction form
    251,757.98/347,434.81 = 137,046.07/x
  3. Step 3: Cross multiply
    251,757.98x = 347,434.81 × 137,046.07
  4. Step 4: Simplify right side
    251,757.98x = 47,614,574,080.49
  5. Step 5: Solve for x
    x = 47,614,574,080.49/251,757.98
  6. Step 6: Final answer
    x = 189,128.36

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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.