Home / 230,078.25-317,507.99-129,478.41

Finding the Fourth Proportional to 230,078.25, 317,507.99 and 129,478.41

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Solution

The fourth proportional to 230,078.25, 317,507.99 and 129,478.41 is: 178,680.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,078.25 : 317,507.99 = 129,478.41 : x
  2. Step 2: Convert to fraction form
    230,078.25/317,507.99 = 129,478.41/x
  3. Step 3: Cross multiply
    230,078.25x = 317,507.99 × 129,478.41
  4. Step 4: Simplify right side
    230,078.25x = 41,110,429,060.10
  5. Step 5: Solve for x
    x = 41,110,429,060.10/230,078.25
  6. Step 6: Final answer
    x = 178,680.21

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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.