Home / 226,505.40-339,976.80-137,931.90

Finding the Fourth Proportional to 226,505.40, 339,976.80 and 137,931.90

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Solution

The fourth proportional to 226,505.40, 339,976.80 and 137,931.90 is: 207,031.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,505.40 : 339,976.80 = 137,931.90 : x
  2. Step 2: Convert to fraction form
    226,505.40/339,976.80 = 137,931.90/x
  3. Step 3: Cross multiply
    226,505.40x = 339,976.80 × 137,931.90
  4. Step 4: Simplify right side
    226,505.40x = 46,893,645,979.92
  5. Step 5: Solve for x
    x = 46,893,645,979.92/226,505.40
  6. Step 6: Final answer
    x = 207,031.03

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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.