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Finding the Fourth Proportional to 331,446.64, 497,060.52 and 131,816.56

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Solution

The fourth proportional to 331,446.64, 497,060.52 and 131,816.56 is: 197,681.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,446.64 : 497,060.52 = 131,816.56 : x
  2. Step 2: Convert to fraction form
    331,446.64/497,060.52 = 131,816.56/x
  3. Step 3: Cross multiply
    331,446.64x = 497,060.52 × 131,816.56
  4. Step 4: Simplify right side
    331,446.64x = 65,520,807,858.21
  5. Step 5: Solve for x
    x = 65,520,807,858.21/331,446.64
  6. Step 6: Final answer
    x = 197,681.32

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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.