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Finding the Fourth Proportional to 325,789.80, 488,538.90 and 148,205.40

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Solution

The fourth proportional to 325,789.80, 488,538.90 and 148,205.40 is: 222,241.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,789.80 : 488,538.90 = 148,205.40 : x
  2. Step 2: Convert to fraction form
    325,789.80/488,538.90 = 148,205.40/x
  3. Step 3: Cross multiply
    325,789.80x = 488,538.90 × 148,205.40
  4. Step 4: Simplify right side
    325,789.80x = 72,404,103,090.06
  5. Step 5: Solve for x
    x = 72,404,103,090.06/325,789.80
  6. Step 6: Final answer
    x = 222,241.77

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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.