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Finding the Fourth Proportional to 311,270.60, 466,905.90 and 308,937.80

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Solution

The fourth proportional to 311,270.60, 466,905.90 and 308,937.80 is: 463,406.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,270.60 : 466,905.90 = 308,937.80 : x
  2. Step 2: Convert to fraction form
    311,270.60/466,905.90 = 308,937.80/x
  3. Step 3: Cross multiply
    311,270.60x = 466,905.90 × 308,937.80
  4. Step 4: Simplify right side
    311,270.60x = 144,244,881,553.02
  5. Step 5: Solve for x
    x = 144,244,881,553.02/311,270.60
  6. Step 6: Final answer
    x = 463,406.70

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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.