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Finding the Fourth Proportional to 219,554.75, 302,818.37 and 188,979.88

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Solution

The fourth proportional to 219,554.75, 302,818.37 and 188,979.88 is: 260,648.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,554.75 : 302,818.37 = 188,979.88 : x
  2. Step 2: Convert to fraction form
    219,554.75/302,818.37 = 188,979.88/x
  3. Step 3: Cross multiply
    219,554.75x = 302,818.37 × 188,979.88
  4. Step 4: Simplify right side
    219,554.75x = 57,226,579,224.40
  5. Step 5: Solve for x
    x = 57,226,579,224.40/219,554.75
  6. Step 6: Final answer
    x = 260,648.33

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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.