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Finding the Fourth Proportional to 299,170.67, 448,752.56 and 85,943.81

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Solution

The fourth proportional to 299,170.67, 448,752.56 and 85,943.81 is: 128,914.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,170.67 : 448,752.56 = 85,943.81 : x
  2. Step 2: Convert to fraction form
    299,170.67/448,752.56 = 85,943.81/x
  3. Step 3: Cross multiply
    299,170.67x = 448,752.56 × 85,943.81
  4. Step 4: Simplify right side
    299,170.67x = 38,567,505,445.82
  5. Step 5: Solve for x
    x = 38,567,505,445.82/299,170.67
  6. Step 6: Final answer
    x = 128,914.73

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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.