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Finding the Fourth Proportional to 518,794.20, 778,541.46 and 203,211.96

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Solution

The fourth proportional to 518,794.20, 778,541.46 and 203,211.96 is: 304,955.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,794.20 : 778,541.46 = 203,211.96 : x
  2. Step 2: Convert to fraction form
    518,794.20/778,541.46 = 203,211.96/x
  3. Step 3: Cross multiply
    518,794.20x = 778,541.46 × 203,211.96
  4. Step 4: Simplify right side
    518,794.20x = 158,208,936,027.86
  5. Step 5: Solve for x
    x = 158,208,936,027.86/518,794.20
  6. Step 6: Final answer
    x = 304,955.10

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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.