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Finding the Fourth Proportional to 325,308.96, 488,010.08 and 100,689.12

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Solution

The fourth proportional to 325,308.96, 488,010.08 and 100,689.12 is: 151,048.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,308.96 : 488,010.08 = 100,689.12 : x
  2. Step 2: Convert to fraction form
    325,308.96/488,010.08 = 100,689.12/x
  3. Step 3: Cross multiply
    325,308.96x = 488,010.08 × 100,689.12
  4. Step 4: Simplify right side
    325,308.96x = 49,137,305,506.33
  5. Step 5: Solve for x
    x = 49,137,305,506.33/325,308.96
  6. Step 6: Final answer
    x = 151,048.12

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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.