Home / 220,181.60-330,283.20-115,205.60

Finding the Fourth Proportional to 220,181.60, 330,283.20 and 115,205.60

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Solution

The fourth proportional to 220,181.60, 330,283.20 and 115,205.60 is: 172,814.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,181.60 : 330,283.20 = 115,205.60 : x
  2. Step 2: Convert to fraction form
    220,181.60/330,283.20 = 115,205.60/x
  3. Step 3: Cross multiply
    220,181.60x = 330,283.20 × 115,205.60
  4. Step 4: Simplify right side
    220,181.60x = 38,050,474,225.92
  5. Step 5: Solve for x
    x = 38,050,474,225.92/220,181.60
  6. Step 6: Final answer
    x = 172,814.05

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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.