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Finding the Fourth Proportional to 219,099.98, 302,371.80 and 123,571.82

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Solution

The fourth proportional to 219,099.98, 302,371.80 and 123,571.82 is: 170,536.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,099.98 : 302,371.80 = 123,571.82 : x
  2. Step 2: Convert to fraction form
    219,099.98/302,371.80 = 123,571.82/x
  3. Step 3: Cross multiply
    219,099.98x = 302,371.80 × 123,571.82
  4. Step 4: Simplify right side
    219,099.98x = 37,364,633,642.68
  5. Step 5: Solve for x
    x = 37,364,633,642.68/219,099.98
  6. Step 6: Final answer
    x = 170,536.91

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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.