Home / 325,821.20-488,731.80-247,089.20

Finding the Fourth Proportional to 325,821.20, 488,731.80 and 247,089.20

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Solution

The fourth proportional to 325,821.20, 488,731.80 and 247,089.20 is: 370,633.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,821.20 : 488,731.80 = 247,089.20 : x
  2. Step 2: Convert to fraction form
    325,821.20/488,731.80 = 247,089.20/x
  3. Step 3: Cross multiply
    325,821.20x = 488,731.80 × 247,089.20
  4. Step 4: Simplify right side
    325,821.20x = 120,760,349,476.56
  5. Step 5: Solve for x
    x = 120,760,349,476.56/325,821.20
  6. Step 6: Final answer
    x = 370,633.80

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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.