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Finding the Fourth Proportional to 219,402.64, 329,116.71 and 61,643.41

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Solution

The fourth proportional to 219,402.64, 329,116.71 and 61,643.41 is: 92,468.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,402.64 : 329,116.71 = 61,643.41 : x
  2. Step 2: Convert to fraction form
    219,402.64/329,116.71 = 61,643.41/x
  3. Step 3: Cross multiply
    219,402.64x = 329,116.71 × 61,643.41
  4. Step 4: Simplify right side
    219,402.64x = 20,287,876,292.38
  5. Step 5: Solve for x
    x = 20,287,876,292.38/219,402.64
  6. Step 6: Final answer
    x = 92,468.70

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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.