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Finding the Fourth Proportional to 331,646.40, 497,372.40 and 154,110.60

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Solution

The fourth proportional to 331,646.40, 497,372.40 and 154,110.60 is: 231,120.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,646.40 : 497,372.40 = 154,110.60 : x
  2. Step 2: Convert to fraction form
    331,646.40/497,372.40 = 154,110.60/x
  3. Step 3: Cross multiply
    331,646.40x = 497,372.40 × 154,110.60
  4. Step 4: Simplify right side
    331,646.40x = 76,650,358,987.44
  5. Step 5: Solve for x
    x = 76,650,358,987.44/331,646.40
  6. Step 6: Final answer
    x = 231,120.73

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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.