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Finding the Fourth Proportional to 219,715.68, 303,195.78 and 124,216.68

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Solution

The fourth proportional to 219,715.68, 303,195.78 and 124,216.68 is: 171,412.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,715.68 : 303,195.78 = 124,216.68 : x
  2. Step 2: Convert to fraction form
    219,715.68/303,195.78 = 124,216.68/x
  3. Step 3: Cross multiply
    219,715.68x = 303,195.78 × 124,216.68
  4. Step 4: Simplify right side
    219,715.68x = 37,661,973,181.61
  5. Step 5: Solve for x
    x = 37,661,973,181.61/219,715.68
  6. Step 6: Final answer
    x = 171,412.31

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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.