Home / 242,986.40-363,313.20-180,000.80

Finding the Fourth Proportional to 242,986.40, 363,313.20 and 180,000.80

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Solution

The fourth proportional to 242,986.40, 363,313.20 and 180,000.80 is: 269,137.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,986.40 : 363,313.20 = 180,000.80 : x
  2. Step 2: Convert to fraction form
    242,986.40/363,313.20 = 180,000.80/x
  3. Step 3: Cross multiply
    242,986.40x = 363,313.20 × 180,000.80
  4. Step 4: Simplify right side
    242,986.40x = 65,396,666,650.56
  5. Step 5: Solve for x
    x = 65,396,666,650.56/242,986.40
  6. Step 6: Final answer
    x = 269,137.15

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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.