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Finding the Fourth Proportional to 219,308.49, 302,628.83 and 123,824.61

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Solution

The fourth proportional to 219,308.49, 302,628.83 and 123,824.61 is: 170,868.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,308.49 : 302,628.83 = 123,824.61 : x
  2. Step 2: Convert to fraction form
    219,308.49/302,628.83 = 123,824.61/x
  3. Step 3: Cross multiply
    219,308.49x = 302,628.83 × 123,824.61
  4. Step 4: Simplify right side
    219,308.49x = 37,472,896,230.38
  5. Step 5: Solve for x
    x = 37,472,896,230.38/219,308.49
  6. Step 6: Final answer
    x = 170,868.42

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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.