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Finding the Fourth Proportional to 219,493.86, 329,240.90 and 61,722.30

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Solution

The fourth proportional to 219,493.86, 329,240.90 and 61,722.30 is: 92,583.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,493.86 : 329,240.90 = 61,722.30 : x
  2. Step 2: Convert to fraction form
    219,493.86/329,240.90 = 61,722.30/x
  3. Step 3: Cross multiply
    219,493.86x = 329,240.90 × 61,722.30
  4. Step 4: Simplify right side
    219,493.86x = 20,321,505,602.07
  5. Step 5: Solve for x
    x = 20,321,505,602.07/219,493.86
  6. Step 6: Final answer
    x = 92,583.48

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1.5x scale

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.