Home / 212,910.45-319,498.64-141,882.93

Finding the Fourth Proportional to 212,910.45, 319,498.64 and 141,882.93

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Solution

The fourth proportional to 212,910.45, 319,498.64 and 141,882.93 is: 212,912.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,910.45 : 319,498.64 = 141,882.93 : x
  2. Step 2: Convert to fraction form
    212,910.45/319,498.64 = 141,882.93/x
  3. Step 3: Cross multiply
    212,910.45x = 319,498.64 × 141,882.93
  4. Step 4: Simplify right side
    212,910.45x = 45,331,401,824.11
  5. Step 5: Solve for x
    x = 45,331,401,824.11/212,910.45
  6. Step 6: Final answer
    x = 212,912.99

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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.