Home / 366,937.20-550,405.80-145,321.20

Finding the Fourth Proportional to 366,937.20, 550,405.80 and 145,321.20

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Solution

The fourth proportional to 366,937.20, 550,405.80 and 145,321.20 is: 217,981.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,937.20 : 550,405.80 = 145,321.20 : x
  2. Step 2: Convert to fraction form
    366,937.20/550,405.80 = 145,321.20/x
  3. Step 3: Cross multiply
    366,937.20x = 550,405.80 × 145,321.20
  4. Step 4: Simplify right side
    366,937.20x = 79,985,631,342.96
  5. Step 5: Solve for x
    x = 79,985,631,342.96/366,937.20
  6. Step 6: Final answer
    x = 217,981.80

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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.