Home / 215,969.28-297,936-140,490.24

Finding the Fourth Proportional to 215,969.28, 297,936 and 140,490.24

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Solution

The fourth proportional to 215,969.28, 297,936 and 140,490.24 is: 193,810.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,969.28 : 297,936 = 140,490.24 : x
  2. Step 2: Convert to fraction form
    215,969.28/297,936 = 140,490.24/x
  3. Step 3: Cross multiply
    215,969.28x = 297,936 × 140,490.24
  4. Step 4: Simplify right side
    215,969.28x = 41,857,100,144.64
  5. Step 5: Solve for x
    x = 41,857,100,144.64/215,969.28
  6. Step 6: Final answer
    x = 193,810.44

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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.