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Finding the Fourth Proportional to 219,227.18, 302,519.22 and 123,720.89

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Solution

The fourth proportional to 219,227.18, 302,519.22 and 123,720.89 is: 170,726.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,227.18 : 302,519.22 = 123,720.89 : x
  2. Step 2: Convert to fraction form
    219,227.18/302,519.22 = 123,720.89/x
  3. Step 3: Cross multiply
    219,227.18x = 302,519.22 × 123,720.89
  4. Step 4: Simplify right side
    219,227.18x = 37,427,947,140.51
  5. Step 5: Solve for x
    x = 37,427,947,140.51/219,227.18
  6. Step 6: Final answer
    x = 170,726.76

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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.