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Finding the Fourth Proportional to 219,771.98, 329,670.81 and 84,836.76

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Solution

The fourth proportional to 219,771.98, 329,670.81 and 84,836.76 is: 127,260.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,771.98 : 329,670.81 = 84,836.76 : x
  2. Step 2: Convert to fraction form
    219,771.98/329,670.81 = 84,836.76/x
  3. Step 3: Cross multiply
    219,771.98x = 329,670.81 × 84,836.76
  4. Step 4: Simplify right side
    219,771.98x = 27,968,203,386.98
  5. Step 5: Solve for x
    x = 27,968,203,386.98/219,771.98
  6. Step 6: Final answer
    x = 127,260.10

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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.