Home / 308,905.10-463,400.85-131,410.70

Finding the Fourth Proportional to 308,905.10, 463,400.85 and 131,410.70

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Solution

The fourth proportional to 308,905.10, 463,400.85 and 131,410.70 is: 197,134.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,905.10 : 463,400.85 = 131,410.70 : x
  2. Step 2: Convert to fraction form
    308,905.10/463,400.85 = 131,410.70/x
  3. Step 3: Cross multiply
    308,905.10x = 463,400.85 × 131,410.70
  4. Step 4: Simplify right side
    308,905.10x = 60,895,830,079.10
  5. Step 5: Solve for x
    x = 60,895,830,079.10/308,905.10
  6. Step 6: Final answer
    x = 197,134.43

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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.