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Finding the Fourth Proportional to 331,268.80, 496,903.20 and 291,902.80

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Solution

The fourth proportional to 331,268.80, 496,903.20 and 291,902.80 is: 437,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,268.80 : 496,903.20 = 291,902.80 : x
  2. Step 2: Convert to fraction form
    331,268.80/496,903.20 = 291,902.80/x
  3. Step 3: Cross multiply
    331,268.80x = 496,903.20 × 291,902.80
  4. Step 4: Simplify right side
    331,268.80x = 145,047,435,408.96
  5. Step 5: Solve for x
    x = 145,047,435,408.96/331,268.80
  6. Step 6: Final answer
    x = 437,854.20

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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.