Home / 215,918.56-297,968.13-120,431.44

Finding the Fourth Proportional to 215,918.56, 297,968.13 and 120,431.44

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Solution

The fourth proportional to 215,918.56, 297,968.13 and 120,431.44 is: 166,195.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,918.56 : 297,968.13 = 120,431.44 : x
  2. Step 2: Convert to fraction form
    215,918.56/297,968.13 = 120,431.44/x
  3. Step 3: Cross multiply
    215,918.56x = 297,968.13 × 120,431.44
  4. Step 4: Simplify right side
    215,918.56x = 35,884,730,970.01
  5. Step 5: Solve for x
    x = 35,884,730,970.01/215,918.56
  6. Step 6: Final answer
    x = 166,195.68

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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.