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Finding the Fourth Proportional to 254,220.39, 350,817.45 and 139,498.68

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Solution

The fourth proportional to 254,220.39, 350,817.45 and 139,498.68 is: 192,504.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,220.39 : 350,817.45 = 139,498.68 : x
  2. Step 2: Convert to fraction form
    254,220.39/350,817.45 = 139,498.68/x
  3. Step 3: Cross multiply
    254,220.39x = 350,817.45 × 139,498.68
  4. Step 4: Simplify right side
    254,220.39x = 48,938,571,195.97
  5. Step 5: Solve for x
    x = 48,938,571,195.97/254,220.39
  6. Step 6: Final answer
    x = 192,504.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.