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Finding the Fourth Proportional to 330,290.50, 455,803.23 and 179,387.50

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Solution

The fourth proportional to 330,290.50, 455,803.23 and 179,387.50 is: 247,556.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,290.50 : 455,803.23 = 179,387.50 : x
  2. Step 2: Convert to fraction form
    330,290.50/455,803.23 = 179,387.50/x
  3. Step 3: Cross multiply
    330,290.50x = 455,803.23 × 179,387.50
  4. Step 4: Simplify right side
    330,290.50x = 81,765,401,921.63
  5. Step 5: Solve for x
    x = 81,765,401,921.63/330,290.50
  6. Step 6: Final answer
    x = 247,556.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.