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Finding the Fourth Proportional to 299,439.90, 449,487.90 and 187,246.80

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Solution

The fourth proportional to 299,439.90, 449,487.90 and 187,246.80 is: 281,075.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,439.90 : 449,487.90 = 187,246.80 : x
  2. Step 2: Convert to fraction form
    299,439.90/449,487.90 = 187,246.80/x
  3. Step 3: Cross multiply
    299,439.90x = 449,487.90 × 187,246.80
  4. Step 4: Simplify right side
    299,439.90x = 84,165,170,913.72
  5. Step 5: Solve for x
    x = 84,165,170,913.72/299,439.90
  6. Step 6: Final answer
    x = 281,075.34

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1.5x scale

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.