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Finding the Fourth Proportional to 150,401.70, 225,602.55 and 120,877.20

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Solution

The fourth proportional to 150,401.70, 225,602.55 and 120,877.20 is: 181,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,401.70 : 225,602.55 = 120,877.20 : x
  2. Step 2: Convert to fraction form
    150,401.70/225,602.55 = 120,877.20/x
  3. Step 3: Cross multiply
    150,401.70x = 225,602.55 × 120,877.20
  4. Step 4: Simplify right side
    150,401.70x = 27,270,204,556.86
  5. Step 5: Solve for x
    x = 27,270,204,556.86/150,401.70
  6. Step 6: Final answer
    x = 181,315.80

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1.5x scale

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.