Home / 240,148.37-331,405.78-131,254.90

Finding the Fourth Proportional to 240,148.37, 331,405.78 and 131,254.90

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Solution

The fourth proportional to 240,148.37, 331,405.78 and 131,254.90 is: 181,132.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,148.37 : 331,405.78 = 131,254.90 : x
  2. Step 2: Convert to fraction form
    240,148.37/331,405.78 = 131,254.90/x
  3. Step 3: Cross multiply
    240,148.37x = 331,405.78 × 131,254.90
  4. Step 4: Simplify right side
    240,148.37x = 43,498,632,513.32
  5. Step 5: Solve for x
    x = 43,498,632,513.32/240,148.37
  6. Step 6: Final answer
    x = 181,132.32

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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.