Home / 251,013.78-346,405.14-137,836.53

Finding the Fourth Proportional to 251,013.78, 346,405.14 and 137,836.53

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Solution

The fourth proportional to 251,013.78, 346,405.14 and 137,836.53 is: 190,217.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,013.78 : 346,405.14 = 137,836.53 : x
  2. Step 2: Convert to fraction form
    251,013.78/346,405.14 = 137,836.53/x
  3. Step 3: Cross multiply
    251,013.78x = 346,405.14 × 137,836.53
  4. Step 4: Simplify right side
    251,013.78x = 47,747,282,471.76
  5. Step 5: Solve for x
    x = 47,747,282,471.76/251,013.78
  6. Step 6: Final answer
    x = 190,217.77

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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.