Home / 378,787.48-568,033.66-142,001.08

Finding the Fourth Proportional to 378,787.48, 568,033.66 and 142,001.08

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Solution

The fourth proportional to 378,787.48, 568,033.66 and 142,001.08 is: 212,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,787.48 : 568,033.66 = 142,001.08 : x
  2. Step 2: Convert to fraction form
    378,787.48/568,033.66 = 142,001.08/x
  3. Step 3: Cross multiply
    378,787.48x = 568,033.66 × 142,001.08
  4. Step 4: Simplify right side
    378,787.48x = 80,661,393,196.35
  5. Step 5: Solve for x
    x = 80,661,393,196.35/378,787.48
  6. Step 6: Final answer
    x = 212,946.30

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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.