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Finding the Fourth Proportional to 299,071.34, 448,219.50 and 121,481.47

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Solution

The fourth proportional to 299,071.34, 448,219.50 and 121,481.47 is: 182,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,071.34 : 448,219.50 = 121,481.47 : x
  2. Step 2: Convert to fraction form
    299,071.34/448,219.50 = 121,481.47/x
  3. Step 3: Cross multiply
    299,071.34x = 448,219.50 × 121,481.47
  4. Step 4: Simplify right side
    299,071.34x = 54,450,364,189.05
  5. Step 5: Solve for x
    x = 54,450,364,189.05/299,071.34
  6. Step 6: Final answer
    x = 182,064.80

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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.