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Finding the Fourth Proportional to 219,492.49, 329,238.87 and 61,720.95

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Solution

The fourth proportional to 219,492.49, 329,238.87 and 61,720.95 is: 92,581.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,492.49 : 329,238.87 = 61,720.95 : x
  2. Step 2: Convert to fraction form
    219,492.49/329,238.87 = 61,720.95/x
  3. Step 3: Cross multiply
    219,492.49x = 329,238.87 × 61,720.95
  4. Step 4: Simplify right side
    219,492.49x = 20,320,935,833.33
  5. Step 5: Solve for x
    x = 20,320,935,833.33/219,492.49
  6. Step 6: Final answer
    x = 92,581.46

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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.