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Finding the Fourth Proportional to 308,719.80, 463,079.70 and 151,255.80

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Solution

The fourth proportional to 308,719.80, 463,079.70 and 151,255.80 is: 226,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,719.80 : 463,079.70 = 151,255.80 : x
  2. Step 2: Convert to fraction form
    308,719.80/463,079.70 = 151,255.80/x
  3. Step 3: Cross multiply
    308,719.80x = 463,079.70 × 151,255.80
  4. Step 4: Simplify right side
    308,719.80x = 70,043,490,487.26
  5. Step 5: Solve for x
    x = 70,043,490,487.26/308,719.80
  6. Step 6: Final answer
    x = 226,883.70

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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.