Home / 209,695.28-314,231.86-154,019.12

Finding the Fourth Proportional to 209,695.28, 314,231.86 and 154,019.12

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Solution

The fourth proportional to 209,695.28, 314,231.86 and 154,019.12 is: 230,800.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,695.28 : 314,231.86 = 154,019.12 : x
  2. Step 2: Convert to fraction form
    209,695.28/314,231.86 = 154,019.12/x
  3. Step 3: Cross multiply
    209,695.28x = 314,231.86 × 154,019.12
  4. Step 4: Simplify right side
    209,695.28x = 48,397,714,553.16
  5. Step 5: Solve for x
    x = 48,397,714,553.16/209,695.28
  6. Step 6: Final answer
    x = 230,800.21

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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.