Home / 230,501.25-318,068.37-128,517.03

Finding the Fourth Proportional to 230,501.25, 318,068.37 and 128,517.03

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Solution

The fourth proportional to 230,501.25, 318,068.37 and 128,517.03 is: 177,340.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,501.25 : 318,068.37 = 128,517.03 : x
  2. Step 2: Convert to fraction form
    230,501.25/318,068.37 = 128,517.03/x
  3. Step 3: Cross multiply
    230,501.25x = 318,068.37 × 128,517.03
  4. Step 4: Simplify right side
    230,501.25x = 40,877,202,249.34
  5. Step 5: Solve for x
    x = 40,877,202,249.34/230,501.25
  6. Step 6: Final answer
    x = 177,340.48

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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.