Home / 383,731.10-575,268.42-147,243.50

Finding the Fourth Proportional to 383,731.10, 575,268.42 and 147,243.50

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Solution

The fourth proportional to 383,731.10, 575,268.42 and 147,243.50 is: 220,739.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,731.10 : 575,268.42 = 147,243.50 : x
  2. Step 2: Convert to fraction form
    383,731.10/575,268.42 = 147,243.50/x
  3. Step 3: Cross multiply
    383,731.10x = 575,268.42 × 147,243.50
  4. Step 4: Simplify right side
    383,731.10x = 84,704,535,600.27
  5. Step 5: Solve for x
    x = 84,704,535,600.27/383,731.10
  6. Step 6: Final answer
    x = 220,739.30

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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.