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Finding the Fourth Proportional to 308,999.60, 463,240.20 and 161,255.60

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Solution

The fourth proportional to 308,999.60, 463,240.20 and 161,255.60 is: 241,748.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,999.60 : 463,240.20 = 161,255.60 : x
  2. Step 2: Convert to fraction form
    308,999.60/463,240.20 = 161,255.60/x
  3. Step 3: Cross multiply
    308,999.60x = 463,240.20 × 161,255.60
  4. Step 4: Simplify right side
    308,999.60x = 74,700,076,395.12
  5. Step 5: Solve for x
    x = 74,700,076,395.12/308,999.60
  6. Step 6: Final answer
    x = 241,748.13

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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.