Home / 430,576.80-645,898.22-131,082.96

Finding the Fourth Proportional to 430,576.80, 645,898.22 and 131,082.96

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Solution

The fourth proportional to 430,576.80, 645,898.22 and 131,082.96 is: 196,634.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,576.80 : 645,898.22 = 131,082.96 : x
  2. Step 2: Convert to fraction form
    430,576.80/645,898.22 = 131,082.96/x
  3. Step 3: Cross multiply
    430,576.80x = 645,898.22 × 131,082.96
  4. Step 4: Simplify right side
    430,576.80x = 84,666,250,536.33
  5. Step 5: Solve for x
    x = 84,666,250,536.33/430,576.80
  6. Step 6: Final answer
    x = 196,634.49

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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.