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Finding the Fourth Proportional to 433,421.98, 650,195.16 and 133,928.72

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Solution

The fourth proportional to 433,421.98, 650,195.16 and 133,928.72 is: 200,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,421.98 : 650,195.16 = 133,928.72 : x
  2. Step 2: Convert to fraction form
    433,421.98/650,195.16 = 133,928.72/x
  3. Step 3: Cross multiply
    433,421.98x = 650,195.16 × 133,928.72
  4. Step 4: Simplify right side
    433,421.98x = 87,079,805,529.00
  5. Step 5: Solve for x
    x = 87,079,805,529.00/433,421.98
  6. Step 6: Final answer
    x = 200,912.30

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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.