Home / 938,100.11-1,407,130.72-228,131.87

Finding the Fourth Proportional to 938,100.11, 1,407,130.72 and 228,131.87

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Solution

The fourth proportional to 938,100.11, 1,407,130.72 and 228,131.87 is: 342,193.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,100.11 : 1,407,130.72 = 228,131.87 : x
  2. Step 2: Convert to fraction form
    938,100.11/1,407,130.72 = 228,131.87/x
  3. Step 3: Cross multiply
    938,100.11x = 1,407,130.72 × 228,131.87
  4. Step 4: Simplify right side
    938,100.11x = 321,011,354,882.06
  5. Step 5: Solve for x
    x = 321,011,354,882.06/938,100.11
  6. Step 6: Final answer
    x = 342,193.07

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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.