Home / 505,780.20-758,670.30-131,803.20

Finding the Fourth Proportional to 505,780.20, 758,670.30 and 131,803.20

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Solution

The fourth proportional to 505,780.20, 758,670.30 and 131,803.20 is: 197,704.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,780.20 : 758,670.30 = 131,803.20 : x
  2. Step 2: Convert to fraction form
    505,780.20/758,670.30 = 131,803.20/x
  3. Step 3: Cross multiply
    505,780.20x = 758,670.30 × 131,803.20
  4. Step 4: Simplify right side
    505,780.20x = 99,995,173,284.96
  5. Step 5: Solve for x
    x = 99,995,173,284.96/505,780.20
  6. Step 6: Final answer
    x = 197,704.80

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Similar ratio
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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.