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Finding the Fourth Proportional to 330,803.13, 496,368.90 and 131,119.14

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Solution

The fourth proportional to 330,803.13, 496,368.90 and 131,119.14 is: 196,743.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,803.13 : 496,368.90 = 131,119.14 : x
  2. Step 2: Convert to fraction form
    330,803.13/496,368.90 = 131,119.14/x
  3. Step 3: Cross multiply
    330,803.13x = 496,368.90 × 131,119.14
  4. Step 4: Simplify right side
    330,803.13x = 65,083,463,290.75
  5. Step 5: Solve for x
    x = 65,083,463,290.75/330,803.13
  6. Step 6: Final answer
    x = 196,743.80

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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.