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Finding the Fourth Proportional to 378,843.53, 522,974.56 and 249,858.52

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Solution

The fourth proportional to 378,843.53, 522,974.56 and 249,858.52 is: 344,917.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,843.53 : 522,974.56 = 249,858.52 : x
  2. Step 2: Convert to fraction form
    378,843.53/522,974.56 = 249,858.52/x
  3. Step 3: Cross multiply
    378,843.53x = 522,974.56 × 249,858.52
  4. Step 4: Simplify right side
    378,843.53x = 130,669,648,095.65
  5. Step 5: Solve for x
    x = 130,669,648,095.65/378,843.53
  6. Step 6: Final answer
    x = 344,917.20

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1.5x scale

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.