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Finding the Fourth Proportional to 308,260.92, 425,213.10 and 212,598.84

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Solution

The fourth proportional to 308,260.92, 425,213.10 and 212,598.84 is: 293,257.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,260.92 : 425,213.10 = 212,598.84 : x
  2. Step 2: Convert to fraction form
    308,260.92/425,213.10 = 212,598.84/x
  3. Step 3: Cross multiply
    308,260.92x = 425,213.10 × 212,598.84
  4. Step 4: Simplify right side
    308,260.92x = 90,399,811,812.80
  5. Step 5: Solve for x
    x = 90,399,811,812.80/308,260.92
  6. Step 6: Final answer
    x = 293,257.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.