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Finding the Fourth Proportional to 219,906.82, 329,913.96 and 70,147.14

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Solution

The fourth proportional to 219,906.82, 329,913.96 and 70,147.14 is: 105,237.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,906.82 : 329,913.96 = 70,147.14 : x
  2. Step 2: Convert to fraction form
    219,906.82/329,913.96 = 70,147.14/x
  3. Step 3: Cross multiply
    219,906.82x = 329,913.96 × 70,147.14
  4. Step 4: Simplify right side
    219,906.82x = 23,142,519,090.50
  5. Step 5: Solve for x
    x = 23,142,519,090.50/219,906.82
  6. Step 6: Final answer
    x = 105,237.84

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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.