Home / 215,748.87-297,743.55-120,256.25

Finding the Fourth Proportional to 215,748.87, 297,743.55 and 120,256.25

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Solution

The fourth proportional to 215,748.87, 297,743.55 and 120,256.25 is: 165,959.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,748.87 : 297,743.55 = 120,256.25 : x
  2. Step 2: Convert to fraction form
    215,748.87/297,743.55 = 120,256.25/x
  3. Step 3: Cross multiply
    215,748.87x = 297,743.55 × 120,256.25
  4. Step 4: Simplify right side
    215,748.87x = 35,805,520,845.01
  5. Step 5: Solve for x
    x = 35,805,520,845.01/215,748.87
  6. Step 6: Final answer
    x = 165,959.25

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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.