Home / 228,749.57-343,206.03-138,975.43

Finding the Fourth Proportional to 228,749.57, 343,206.03 and 138,975.43

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Solution

The fourth proportional to 228,749.57, 343,206.03 and 138,975.43 is: 208,512.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,749.57 : 343,206.03 = 138,975.43 : x
  2. Step 2: Convert to fraction form
    228,749.57/343,206.03 = 138,975.43/x
  3. Step 3: Cross multiply
    228,749.57x = 343,206.03 × 138,975.43
  4. Step 4: Simplify right side
    228,749.57x = 47,697,203,186.94
  5. Step 5: Solve for x
    x = 47,697,203,186.94/228,749.57
  6. Step 6: Final answer
    x = 208,512.76

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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.