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Finding the Fourth Proportional to 308,966.60, 463,493.10 and 131,472.20

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Solution

The fourth proportional to 308,966.60, 463,493.10 and 131,472.20 is: 197,226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,966.60 : 463,493.10 = 131,472.20 : x
  2. Step 2: Convert to fraction form
    308,966.60/463,493.10 = 131,472.20/x
  3. Step 3: Cross multiply
    308,966.60x = 463,493.10 × 131,472.20
  4. Step 4: Simplify right side
    308,966.60x = 60,936,457,541.82
  5. Step 5: Solve for x
    x = 60,936,457,541.82/308,966.60
  6. Step 6: Final answer
    x = 197,226.68

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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.