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Finding the Fourth Proportional to 308,280.30, 462,311.10 and 108,607.20

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Solution

The fourth proportional to 308,280.30, 462,311.10 and 108,607.20 is: 162,872.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,280.30 : 462,311.10 = 108,607.20 : x
  2. Step 2: Convert to fraction form
    308,280.30/462,311.10 = 108,607.20/x
  3. Step 3: Cross multiply
    308,280.30x = 462,311.10 × 108,607.20
  4. Step 4: Simplify right side
    308,280.30x = 50,210,314,099.92
  5. Step 5: Solve for x
    x = 50,210,314,099.92/308,280.30
  6. Step 6: Final answer
    x = 162,872.28

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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.