Home / 245,748.15-339,148.49-138,308.13

Finding the Fourth Proportional to 245,748.15, 339,148.49 and 138,308.13

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Solution

The fourth proportional to 245,748.15, 339,148.49 and 138,308.13 is: 190,874.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,748.15 : 339,148.49 = 138,308.13 : x
  2. Step 2: Convert to fraction form
    245,748.15/339,148.49 = 138,308.13/x
  3. Step 3: Cross multiply
    245,748.15x = 339,148.49 × 138,308.13
  4. Step 4: Simplify right side
    245,748.15x = 46,906,992,752.68
  5. Step 5: Solve for x
    x = 46,906,992,752.68/245,748.15
  6. Step 6: Final answer
    x = 190,874.25

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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.