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Finding the Fourth Proportional to 325,802.28, 488,637.80 and 89,168.88

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Solution

The fourth proportional to 325,802.28, 488,637.80 and 89,168.88 is: 133,735.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,802.28 : 488,637.80 = 89,168.88 : x
  2. Step 2: Convert to fraction form
    325,802.28/488,637.80 = 89,168.88/x
  3. Step 3: Cross multiply
    325,802.28x = 488,637.80 × 89,168.88
  4. Step 4: Simplify right side
    325,802.28x = 43,571,285,351.66
  5. Step 5: Solve for x
    x = 43,571,285,351.66/325,802.28
  6. Step 6: Final answer
    x = 133,735.36

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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.