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Finding the Fourth Proportional to 294,561.60, 441,388.80 and 219,328.80

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Solution

The fourth proportional to 294,561.60, 441,388.80 and 219,328.80 is: 328,655.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,561.60 : 441,388.80 = 219,328.80 : x
  2. Step 2: Convert to fraction form
    294,561.60/441,388.80 = 219,328.80/x
  3. Step 3: Cross multiply
    294,561.60x = 441,388.80 × 219,328.80
  4. Step 4: Simplify right side
    294,561.60x = 96,809,275,837.44
  5. Step 5: Solve for x
    x = 96,809,275,837.44/294,561.60
  6. Step 6: Final answer
    x = 328,655.45

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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.