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Finding the Fourth Proportional to 299,170.29, 448,752 and 85,943.43

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Solution

The fourth proportional to 299,170.29, 448,752 and 85,943.43 is: 128,914.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,170.29 : 448,752 = 85,943.43 : x
  2. Step 2: Convert to fraction form
    299,170.29/448,752 = 85,943.43/x
  3. Step 3: Cross multiply
    299,170.29x = 448,752 × 85,943.43
  4. Step 4: Simplify right side
    299,170.29x = 38,567,286,099.36
  5. Step 5: Solve for x
    x = 38,567,286,099.36/299,170.29
  6. Step 6: Final answer
    x = 128,914.16

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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.