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Finding the Fourth Proportional to 219,599.91, 329,432.60 and 69,845.09

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Solution

The fourth proportional to 219,599.91, 329,432.60 and 69,845.09 is: 104,778.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,599.91 : 329,432.60 = 69,845.09 : x
  2. Step 2: Convert to fraction form
    219,599.91/329,432.60 = 69,845.09/x
  3. Step 3: Cross multiply
    219,599.91x = 329,432.60 × 69,845.09
  4. Step 4: Simplify right side
    219,599.91x = 23,009,248,123.38
  5. Step 5: Solve for x
    x = 23,009,248,123.38/219,599.91
  6. Step 6: Final answer
    x = 104,778.04

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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.