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Finding the Fourth Proportional to 299,283.59, 448,672.57 and 139,276.97

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Solution

The fourth proportional to 299,283.59, 448,672.57 and 139,276.97 is: 208,797.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,283.59 : 448,672.57 = 139,276.97 : x
  2. Step 2: Convert to fraction form
    299,283.59/448,672.57 = 139,276.97/x
  3. Step 3: Cross multiply
    299,283.59x = 448,672.57 × 139,276.97
  4. Step 4: Simplify right side
    299,283.59x = 62,489,755,162.68
  5. Step 5: Solve for x
    x = 62,489,755,162.68/299,283.59
  6. Step 6: Final answer
    x = 208,797.80

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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.