Home / 248,455.10-342,860.55-138,073.37

Finding the Fourth Proportional to 248,455.10, 342,860.55 and 138,073.37

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Solution

The fourth proportional to 248,455.10, 342,860.55 and 138,073.37 is: 190,537.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,455.10 : 342,860.55 = 138,073.37 : x
  2. Step 2: Convert to fraction form
    248,455.10/342,860.55 = 138,073.37/x
  3. Step 3: Cross multiply
    248,455.10x = 342,860.55 × 138,073.37
  4. Step 4: Simplify right side
    248,455.10x = 47,339,911,578.55
  5. Step 5: Solve for x
    x = 47,339,911,578.55/248,455.10
  6. Step 6: Final answer
    x = 190,537.09

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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.