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Finding the Fourth Proportional to 442,323.75, 663,485.64 and 109,899.75

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Solution

The fourth proportional to 442,323.75, 663,485.64 and 109,899.75 is: 164,849.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,323.75 : 663,485.64 = 109,899.75 : x
  2. Step 2: Convert to fraction form
    442,323.75/663,485.64 = 109,899.75/x
  3. Step 3: Cross multiply
    442,323.75x = 663,485.64 × 109,899.75
  4. Step 4: Simplify right side
    442,323.75x = 72,916,905,964.59
  5. Step 5: Solve for x
    x = 72,916,905,964.59/442,323.75
  6. Step 6: Final answer
    x = 164,849.63

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Similar ratio
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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.