Home / 481,430.20-721,950.90-165,724.60

Finding the Fourth Proportional to 481,430.20, 721,950.90 and 165,724.60

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Solution

The fourth proportional to 481,430.20, 721,950.90 and 165,724.60 is: 248,519.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,430.20 : 721,950.90 = 165,724.60 : x
  2. Step 2: Convert to fraction form
    481,430.20/721,950.90 = 165,724.60/x
  3. Step 3: Cross multiply
    481,430.20x = 721,950.90 × 165,724.60
  4. Step 4: Simplify right side
    481,430.20x = 119,645,024,122.14
  5. Step 5: Solve for x
    x = 119,645,024,122.14/481,430.20
  6. Step 6: Final answer
    x = 248,519.98

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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.