Home / 245,780.44-339,109.08-138,344.20

Finding the Fourth Proportional to 245,780.44, 339,109.08 and 138,344.20

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Solution

The fourth proportional to 245,780.44, 339,109.08 and 138,344.20 is: 190,876.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,780.44 : 339,109.08 = 138,344.20 : x
  2. Step 2: Convert to fraction form
    245,780.44/339,109.08 = 138,344.20/x
  3. Step 3: Cross multiply
    245,780.44x = 339,109.08 × 138,344.20
  4. Step 4: Simplify right side
    245,780.44x = 46,913,774,385.34
  5. Step 5: Solve for x
    x = 46,913,774,385.34/245,780.44
  6. Step 6: Final answer
    x = 190,876.76

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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.