Home / 330,705.48-496,057.11-90,819.60

Finding the Fourth Proportional to 330,705.48, 496,057.11 and 90,819.60

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Solution

The fourth proportional to 330,705.48, 496,057.11 and 90,819.60 is: 136,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,705.48 : 496,057.11 = 90,819.60 : x
  2. Step 2: Convert to fraction form
    330,705.48/496,057.11 = 90,819.60/x
  3. Step 3: Cross multiply
    330,705.48x = 496,057.11 × 90,819.60
  4. Step 4: Simplify right side
    330,705.48x = 45,051,708,307.36
  5. Step 5: Solve for x
    x = 45,051,708,307.36/330,705.48
  6. Step 6: Final answer
    x = 136,229.10

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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.