Home / 433,051.20-649,576.80-133,505.10

Finding the Fourth Proportional to 433,051.20, 649,576.80 and 133,505.10

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Solution

The fourth proportional to 433,051.20, 649,576.80 and 133,505.10 is: 200,257.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,051.20 : 649,576.80 = 133,505.10 : x
  2. Step 2: Convert to fraction form
    433,051.20/649,576.80 = 133,505.10/x
  3. Step 3: Cross multiply
    433,051.20x = 649,576.80 × 133,505.10
  4. Step 4: Simplify right side
    433,051.20x = 86,721,815,641.68
  5. Step 5: Solve for x
    x = 86,721,815,641.68/433,051.20
  6. Step 6: Final answer
    x = 200,257.65

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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.