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Finding the Fourth Proportional to 325,765.56, 488,648.70 and 89,090.76

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Solution

The fourth proportional to 325,765.56, 488,648.70 and 89,090.76 is: 133,636.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,765.56 : 488,648.70 = 89,090.76 : x
  2. Step 2: Convert to fraction form
    325,765.56/488,648.70 = 89,090.76/x
  3. Step 3: Cross multiply
    325,765.56x = 488,648.70 × 89,090.76
  4. Step 4: Simplify right side
    325,765.56x = 43,534,084,056.01
  5. Step 5: Solve for x
    x = 43,534,084,056.01/325,765.56
  6. Step 6: Final answer
    x = 133,636.24

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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.