Home / 345,344.27-518,086.67-145,665.36

Finding the Fourth Proportional to 345,344.27, 518,086.67 and 145,665.36

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Solution

The fourth proportional to 345,344.27, 518,086.67 and 145,665.36 is: 218,527.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,344.27 : 518,086.67 = 145,665.36 : x
  2. Step 2: Convert to fraction form
    345,344.27/518,086.67 = 145,665.36/x
  3. Step 3: Cross multiply
    345,344.27x = 518,086.67 × 145,665.36
  4. Step 4: Simplify right side
    345,344.27x = 75,467,280,568.42
  5. Step 5: Solve for x
    x = 75,467,280,568.42/345,344.27
  6. Step 6: Final answer
    x = 218,527.68

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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.