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Finding the Fourth Proportional to 308,986.60, 463,134.30 and 131,463.40

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Solution

The fourth proportional to 308,986.60, 463,134.30 and 131,463.40 is: 197,048.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,986.60 : 463,134.30 = 131,463.40 : x
  2. Step 2: Convert to fraction form
    308,986.60/463,134.30 = 131,463.40/x
  3. Step 3: Cross multiply
    308,986.60x = 463,134.30 × 131,463.40
  4. Step 4: Simplify right side
    308,986.60x = 60,885,209,734.62
  5. Step 5: Solve for x
    x = 60,885,209,734.62/308,986.60
  6. Step 6: Final answer
    x = 197,048.06

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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.