Home / 251,964.80-347,711.90-137,243.09

Finding the Fourth Proportional to 251,964.80, 347,711.90 and 137,243.09

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Solution

The fourth proportional to 251,964.80, 347,711.90 and 137,243.09 is: 189,395.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,964.80 : 347,711.90 = 137,243.09 : x
  2. Step 2: Convert to fraction form
    251,964.80/347,711.90 = 137,243.09/x
  3. Step 3: Cross multiply
    251,964.80x = 347,711.90 × 137,243.09
  4. Step 4: Simplify right side
    251,964.80x = 47,721,055,585.77
  5. Step 5: Solve for x
    x = 47,721,055,585.77/251,964.80
  6. Step 6: Final answer
    x = 189,395.72

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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.