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Finding the Fourth Proportional to 254,193.39, 350,775 and 139,469.40

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Solution

The fourth proportional to 254,193.39, 350,775 and 139,469.40 is: 192,461.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,193.39 : 350,775 = 139,469.40 : x
  2. Step 2: Convert to fraction form
    254,193.39/350,775 = 139,469.40/x
  3. Step 3: Cross multiply
    254,193.39x = 350,775 × 139,469.40
  4. Step 4: Simplify right side
    254,193.39x = 48,922,378,785
  5. Step 5: Solve for x
    x = 48,922,378,785/254,193.39
  6. Step 6: Final answer
    x = 192,461.25

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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.