Home / 208,836.20-313,254.30-120,362.60

Finding the Fourth Proportional to 208,836.20, 313,254.30 and 120,362.60

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Solution

The fourth proportional to 208,836.20, 313,254.30 and 120,362.60 is: 180,543.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,836.20 : 313,254.30 = 120,362.60 : x
  2. Step 2: Convert to fraction form
    208,836.20/313,254.30 = 120,362.60/x
  3. Step 3: Cross multiply
    208,836.20x = 313,254.30 × 120,362.60
  4. Step 4: Simplify right side
    208,836.20x = 37,704,102,009.18
  5. Step 5: Solve for x
    x = 37,704,102,009.18/208,836.20
  6. Step 6: Final answer
    x = 180,543.90

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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.