Home / 245,649.35-339,002.72-138,223.19

Finding the Fourth Proportional to 245,649.35, 339,002.72 and 138,223.19

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Solution

The fourth proportional to 245,649.35, 339,002.72 and 138,223.19 is: 190,751.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,649.35 : 339,002.72 = 138,223.19 : x
  2. Step 2: Convert to fraction form
    245,649.35/339,002.72 = 138,223.19/x
  3. Step 3: Cross multiply
    245,649.35x = 339,002.72 × 138,223.19
  4. Step 4: Simplify right side
    245,649.35x = 46,858,037,377.08
  5. Step 5: Solve for x
    x = 46,858,037,377.08/245,649.35
  6. Step 6: Final answer
    x = 190,751.73

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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.