Home / 345,622.20-518,433.30-203,904.60

Finding the Fourth Proportional to 345,622.20, 518,433.30 and 203,904.60

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Solution

The fourth proportional to 345,622.20, 518,433.30 and 203,904.60 is: 305,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,622.20 : 518,433.30 = 203,904.60 : x
  2. Step 2: Convert to fraction form
    345,622.20/518,433.30 = 203,904.60/x
  3. Step 3: Cross multiply
    345,622.20x = 518,433.30 × 203,904.60
  4. Step 4: Simplify right side
    345,622.20x = 105,710,934,663.18
  5. Step 5: Solve for x
    x = 105,710,934,663.18/345,622.20
  6. Step 6: Final answer
    x = 305,856.90

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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.