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Finding the Fourth Proportional to 331,202.40, 496,803.60 and 131,570.40

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Solution

The fourth proportional to 331,202.40, 496,803.60 and 131,570.40 is: 197,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,202.40 : 496,803.60 = 131,570.40 : x
  2. Step 2: Convert to fraction form
    331,202.40/496,803.60 = 131,570.40/x
  3. Step 3: Cross multiply
    331,202.40x = 496,803.60 × 131,570.40
  4. Step 4: Simplify right side
    331,202.40x = 65,364,648,373.44
  5. Step 5: Solve for x
    x = 65,364,648,373.44/331,202.40
  6. Step 6: Final answer
    x = 197,355.60

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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.