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Finding the Fourth Proportional to 219,327.65, 329,003.16 and 69,579.91

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Solution

The fourth proportional to 219,327.65, 329,003.16 and 69,579.91 is: 104,373.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,327.65 : 329,003.16 = 69,579.91 : x
  2. Step 2: Convert to fraction form
    219,327.65/329,003.16 = 69,579.91/x
  3. Step 3: Cross multiply
    219,327.65x = 329,003.16 × 69,579.91
  4. Step 4: Simplify right side
    219,327.65x = 22,892,009,440.01
  5. Step 5: Solve for x
    x = 22,892,009,440.01/219,327.65
  6. Step 6: Final answer
    x = 104,373.57

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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.