Home / 234,637.62-323,715.06-154,108.78

Finding the Fourth Proportional to 234,637.62, 323,715.06 and 154,108.78

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Solution

The fourth proportional to 234,637.62, 323,715.06 and 154,108.78 is: 212,614.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,637.62 : 323,715.06 = 154,108.78 : x
  2. Step 2: Convert to fraction form
    234,637.62/323,715.06 = 154,108.78/x
  3. Step 3: Cross multiply
    234,637.62x = 323,715.06 × 154,108.78
  4. Step 4: Simplify right side
    234,637.62x = 49,887,332,964.23
  5. Step 5: Solve for x
    x = 49,887,332,964.23/234,637.62
  6. Step 6: Final answer
    x = 212,614.38

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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.