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Finding the Fourth Proportional to 299,625.84, 449,503.56 and 89,280.72

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Solution

The fourth proportional to 299,625.84, 449,503.56 and 89,280.72 is: 133,940.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,625.84 : 449,503.56 = 89,280.72 : x
  2. Step 2: Convert to fraction form
    299,625.84/449,503.56 = 89,280.72/x
  3. Step 3: Cross multiply
    299,625.84x = 449,503.56 × 89,280.72
  4. Step 4: Simplify right side
    299,625.84x = 40,132,001,479.36
  5. Step 5: Solve for x
    x = 40,132,001,479.36/299,625.84
  6. Step 6: Final answer
    x = 133,940.39

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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.