Home / 220,157.10-330,246.45-115,181.10

Finding the Fourth Proportional to 220,157.10, 330,246.45 and 115,181.10

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Solution

The fourth proportional to 220,157.10, 330,246.45 and 115,181.10 is: 172,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,157.10 : 330,246.45 = 115,181.10 : x
  2. Step 2: Convert to fraction form
    220,157.10/330,246.45 = 115,181.10/x
  3. Step 3: Cross multiply
    220,157.10x = 330,246.45 × 115,181.10
  4. Step 4: Simplify right side
    220,157.10x = 38,038,149,382.10
  5. Step 5: Solve for x
    x = 38,038,149,382.10/220,157.10
  6. Step 6: Final answer
    x = 172,777.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.