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Finding the Fourth Proportional to 445,980.72, 668,965.26 and 109,024.34

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Solution

The fourth proportional to 445,980.72, 668,965.26 and 109,024.34 is: 163,535.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,980.72 : 668,965.26 = 109,024.34 : x
  2. Step 2: Convert to fraction form
    445,980.72/668,965.26 = 109,024.34/x
  3. Step 3: Cross multiply
    445,980.72x = 668,965.26 × 109,024.34
  4. Step 4: Simplify right side
    445,980.72x = 72,933,495,954.43
  5. Step 5: Solve for x
    x = 72,933,495,954.43/445,980.72
  6. Step 6: Final answer
    x = 163,535.09

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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.