Home / 230,317.17-317,832.93-128,342.22

Finding the Fourth Proportional to 230,317.17, 317,832.93 and 128,342.22

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Solution

The fourth proportional to 230,317.17, 317,832.93 and 128,342.22 is: 177,109.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,317.17 : 317,832.93 = 128,342.22 : x
  2. Step 2: Convert to fraction form
    230,317.17/317,832.93 = 128,342.22/x
  3. Step 3: Cross multiply
    230,317.17x = 317,832.93 × 128,342.22
  4. Step 4: Simplify right side
    230,317.17x = 40,791,383,825.30
  5. Step 5: Solve for x
    x = 40,791,383,825.30/230,317.17
  6. Step 6: Final answer
    x = 177,109.61

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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.