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Finding the Fourth Proportional to 303,156.05, 418,384.92 and 226,542.11

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Solution

The fourth proportional to 303,156.05, 418,384.92 and 226,542.11 is: 312,650.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,156.05 : 418,384.92 = 226,542.11 : x
  2. Step 2: Convert to fraction form
    303,156.05/418,384.92 = 226,542.11/x
  3. Step 3: Cross multiply
    303,156.05x = 418,384.92 × 226,542.11
  4. Step 4: Simplify right side
    303,156.05x = 94,781,803,614.94
  5. Step 5: Solve for x
    x = 94,781,803,614.94/303,156.05
  6. Step 6: Final answer
    x = 312,650.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.