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Finding the Fourth Proportional to 219,710.88, 329,566.23 and 69,997.05

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Solution

The fourth proportional to 219,710.88, 329,566.23 and 69,997.05 is: 104,995.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,710.88 : 329,566.23 = 69,997.05 : x
  2. Step 2: Convert to fraction form
    219,710.88/329,566.23 = 69,997.05/x
  3. Step 3: Cross multiply
    219,710.88x = 329,566.23 × 69,997.05
  4. Step 4: Simplify right side
    219,710.88x = 23,068,663,879.62
  5. Step 5: Solve for x
    x = 23,068,663,879.62/219,710.88
  6. Step 6: Final answer
    x = 104,995.55

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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.