Home / 378,794.02-568,043.37-142,007.50

Finding the Fourth Proportional to 378,794.02, 568,043.37 and 142,007.50

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Solution

The fourth proportional to 378,794.02, 568,043.37 and 142,007.50 is: 212,955.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,794.02 : 568,043.37 = 142,007.50 : x
  2. Step 2: Convert to fraction form
    378,794.02/568,043.37 = 142,007.50/x
  3. Step 3: Cross multiply
    378,794.02x = 568,043.37 × 142,007.50
  4. Step 4: Simplify right side
    378,794.02x = 80,666,418,865.28
  5. Step 5: Solve for x
    x = 80,666,418,865.28/378,794.02
  6. Step 6: Final answer
    x = 212,955.89

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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.