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Finding the Fourth Proportional to 219,719.88, 303,221.61 and 124,220.88

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Solution

The fourth proportional to 219,719.88, 303,221.61 and 124,220.88 is: 171,429.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,719.88 : 303,221.61 = 124,220.88 : x
  2. Step 2: Convert to fraction form
    219,719.88/303,221.61 = 124,220.88/x
  3. Step 3: Cross multiply
    219,719.88x = 303,221.61 × 124,220.88
  4. Step 4: Simplify right side
    219,719.88x = 37,666,455,229.22
  5. Step 5: Solve for x
    x = 37,666,455,229.22/219,719.88
  6. Step 6: Final answer
    x = 171,429.44

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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.