Home / 397,844.68-549,072.49-223,443.58

Finding the Fourth Proportional to 397,844.68, 549,072.49 and 223,443.58

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Solution

The fourth proportional to 397,844.68, 549,072.49 and 223,443.58 is: 308,378.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,844.68 : 549,072.49 = 223,443.58 : x
  2. Step 2: Convert to fraction form
    397,844.68/549,072.49 = 223,443.58/x
  3. Step 3: Cross multiply
    397,844.68x = 549,072.49 × 223,443.58
  4. Step 4: Simplify right side
    397,844.68x = 122,686,722,845.11
  5. Step 5: Solve for x
    x = 122,686,722,845.11/397,844.68
  6. Step 6: Final answer
    x = 308,378.44

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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.