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Finding the Fourth Proportional to 299,971.60, 449,892.60 and 131,491.60

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Solution

The fourth proportional to 299,971.60, 449,892.60 and 131,491.60 is: 197,209.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,971.60 : 449,892.60 = 131,491.60 : x
  2. Step 2: Convert to fraction form
    299,971.60/449,892.60 = 131,491.60/x
  3. Step 3: Cross multiply
    299,971.60x = 449,892.60 × 131,491.60
  4. Step 4: Simplify right side
    299,971.60x = 59,157,097,802.16
  5. Step 5: Solve for x
    x = 59,157,097,802.16/299,971.60
  6. Step 6: Final answer
    x = 197,209.00

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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.