Home / 248,454.10-342,859.17-138,072.37

Finding the Fourth Proportional to 248,454.10, 342,859.17 and 138,072.37

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Solution

The fourth proportional to 248,454.10, 342,859.17 and 138,072.37 is: 190,535.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,454.10 : 342,859.17 = 138,072.37 : x
  2. Step 2: Convert to fraction form
    248,454.10/342,859.17 = 138,072.37/x
  3. Step 3: Cross multiply
    248,454.10x = 342,859.17 × 138,072.37
  4. Step 4: Simplify right side
    248,454.10x = 47,339,378,178.13
  5. Step 5: Solve for x
    x = 47,339,378,178.13/248,454.10
  6. Step 6: Final answer
    x = 190,535.71

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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.