Home / 378,810.27-522,757.80-242,844.08

Finding the Fourth Proportional to 378,810.27, 522,757.80 and 242,844.08

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Solution

The fourth proportional to 378,810.27, 522,757.80 and 242,844.08 is: 335,124.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,810.27 : 522,757.80 = 242,844.08 : x
  2. Step 2: Convert to fraction form
    378,810.27/522,757.80 = 242,844.08/x
  3. Step 3: Cross multiply
    378,810.27x = 522,757.80 × 242,844.08
  4. Step 4: Simplify right side
    378,810.27x = 126,948,634,390.04
  5. Step 5: Solve for x
    x = 126,948,634,390.04/378,810.27
  6. Step 6: Final answer
    x = 335,124.58

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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.