Home / 306,812.05-459,933.90-156,721.30

Finding the Fourth Proportional to 306,812.05, 459,933.90 and 156,721.30

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Solution

The fourth proportional to 306,812.05, 459,933.90 and 156,721.30 is: 234,936.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,812.05 : 459,933.90 = 156,721.30 : x
  2. Step 2: Convert to fraction form
    306,812.05/459,933.90 = 156,721.30/x
  3. Step 3: Cross multiply
    306,812.05x = 459,933.90 × 156,721.30
  4. Step 4: Simplify right side
    306,812.05x = 72,081,438,722.07
  5. Step 5: Solve for x
    x = 72,081,438,722.07/306,812.05
  6. Step 6: Final answer
    x = 234,936.79

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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.