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Finding the Fourth Proportional to 324,795, 487,270.62 and 103,179

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Solution

The fourth proportional to 324,795, 487,270.62 and 103,179 is: 154,793.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,795 : 487,270.62 = 103,179 : x
  2. Step 2: Convert to fraction form
    324,795/487,270.62 = 103,179/x
  3. Step 3: Cross multiply
    324,795x = 487,270.62 × 103,179
  4. Step 4: Simplify right side
    324,795x = 50,276,095,300.98
  5. Step 5: Solve for x
    x = 50,276,095,300.98/324,795
  6. Step 6: Final answer
    x = 154,793.32

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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.