Home / 228,921.05-343,430.82-77,133.23

Finding the Fourth Proportional to 228,921.05, 343,430.82 and 77,133.23

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Solution

The fourth proportional to 228,921.05, 343,430.82 and 77,133.23 is: 115,716.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,921.05 : 343,430.82 = 77,133.23 : x
  2. Step 2: Convert to fraction form
    228,921.05/343,430.82 = 77,133.23/x
  3. Step 3: Cross multiply
    228,921.05x = 343,430.82 × 77,133.23
  4. Step 4: Simplify right side
    228,921.05x = 26,489,928,428.15
  5. Step 5: Solve for x
    x = 26,489,928,428.15/228,921.05
  6. Step 6: Final answer
    x = 115,716.44

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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.