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Finding the Fourth Proportional to 308,963.80, 463,445.70 and 151,499.80

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Solution

The fourth proportional to 308,963.80, 463,445.70 and 151,499.80 is: 227,249.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,963.80 : 463,445.70 = 151,499.80 : x
  2. Step 2: Convert to fraction form
    308,963.80/463,445.70 = 151,499.80/x
  3. Step 3: Cross multiply
    308,963.80x = 463,445.70 × 151,499.80
  4. Step 4: Simplify right side
    308,963.80x = 70,211,930,860.86
  5. Step 5: Solve for x
    x = 70,211,930,860.86/308,963.80
  6. Step 6: Final answer
    x = 227,249.70

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Similar ratio
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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.