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Finding the Fourth Proportional to 445,909.46, 668,862.35 and 161,533.42

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Solution

The fourth proportional to 445,909.46, 668,862.35 and 161,533.42 is: 242,299.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,909.46 : 668,862.35 = 161,533.42 : x
  2. Step 2: Convert to fraction form
    445,909.46/668,862.35 = 161,533.42/x
  3. Step 3: Cross multiply
    445,909.46x = 668,862.35 × 161,533.42
  4. Step 4: Simplify right side
    445,909.46x = 108,043,622,904.74
  5. Step 5: Solve for x
    x = 108,043,622,904.74/445,909.46
  6. Step 6: Final answer
    x = 242,299.46

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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.