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Finding the Fourth Proportional to 253,054.80, 379,582.20 and 218,062.80

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Solution

The fourth proportional to 253,054.80, 379,582.20 and 218,062.80 is: 327,094.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,054.80 : 379,582.20 = 218,062.80 : x
  2. Step 2: Convert to fraction form
    253,054.80/379,582.20 = 218,062.80/x
  3. Step 3: Cross multiply
    253,054.80x = 379,582.20 × 218,062.80
  4. Step 4: Simplify right side
    253,054.80x = 82,772,757,362.16
  5. Step 5: Solve for x
    x = 82,772,757,362.16/253,054.80
  6. Step 6: Final answer
    x = 327,094.20

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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.