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Finding the Fourth Proportional to 277,215.56, 415,826.65 and 108,815.20

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Solution

The fourth proportional to 277,215.56, 415,826.65 and 108,815.20 is: 163,224.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,215.56 : 415,826.65 = 108,815.20 : x
  2. Step 2: Convert to fraction form
    277,215.56/415,826.65 = 108,815.20/x
  3. Step 3: Cross multiply
    277,215.56x = 415,826.65 × 108,815.20
  4. Step 4: Simplify right side
    277,215.56x = 45,248,258,569.45
  5. Step 5: Solve for x
    x = 45,248,258,569.45/277,215.56
  6. Step 6: Final answer
    x = 163,224.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.