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Finding the Fourth Proportional to 449,188.89, 619,871.19 and 245,229.95

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Solution

The fourth proportional to 449,188.89, 619,871.19 and 245,229.95 is: 338,412.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,188.89 : 619,871.19 = 245,229.95 : x
  2. Step 2: Convert to fraction form
    449,188.89/619,871.19 = 245,229.95/x
  3. Step 3: Cross multiply
    449,188.89x = 619,871.19 × 245,229.95
  4. Step 4: Simplify right side
    449,188.89x = 152,010,980,930.14
  5. Step 5: Solve for x
    x = 152,010,980,930.14/449,188.89
  6. Step 6: Final answer
    x = 338,412.16

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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.