Home / 215,720.31-297,695.51-120,233.16

Finding the Fourth Proportional to 215,720.31, 297,695.51 and 120,233.16

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Solution

The fourth proportional to 215,720.31, 297,695.51 and 120,233.16 is: 165,922.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,720.31 : 297,695.51 = 120,233.16 : x
  2. Step 2: Convert to fraction form
    215,720.31/297,695.51 = 120,233.16/x
  3. Step 3: Cross multiply
    215,720.31x = 297,695.51 × 120,233.16
  4. Step 4: Simplify right side
    215,720.31x = 35,792,870,096.05
  5. Step 5: Solve for x
    x = 35,792,870,096.05/215,720.31
  6. Step 6: Final answer
    x = 165,922.58

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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.