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Finding the Fourth Proportional to 449,290.98, 620,046.88 and 245,360.88

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Solution

The fourth proportional to 449,290.98, 620,046.88 and 245,360.88 is: 338,611.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,290.98 : 620,046.88 = 245,360.88 : x
  2. Step 2: Convert to fraction form
    449,290.98/620,046.88 = 245,360.88/x
  3. Step 3: Cross multiply
    449,290.98x = 620,046.88 × 245,360.88
  4. Step 4: Simplify right side
    449,290.98x = 152,135,248,118.05
  5. Step 5: Solve for x
    x = 152,135,248,118.05/449,290.98
  6. Step 6: Final answer
    x = 338,611.85

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1.5x scale

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.