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Finding the Fourth Proportional to 262,208.80, 393,410.40 and 252,488.80

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Solution

The fourth proportional to 262,208.80, 393,410.40 and 252,488.80 is: 378,826.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,208.80 : 393,410.40 = 252,488.80 : x
  2. Step 2: Convert to fraction form
    262,208.80/393,410.40 = 252,488.80/x
  3. Step 3: Cross multiply
    262,208.80x = 393,410.40 × 252,488.80
  4. Step 4: Simplify right side
    262,208.80x = 99,331,719,803.52
  5. Step 5: Solve for x
    x = 99,331,719,803.52/262,208.80
  6. Step 6: Final answer
    x = 378,826.80

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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.