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Finding the Fourth Proportional to 254,221.39, 350,818.83 and 139,499.68

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Solution

The fourth proportional to 254,221.39, 350,818.83 and 139,499.68 is: 192,505.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,221.39 : 350,818.83 = 139,499.68 : x
  2. Step 2: Convert to fraction form
    254,221.39/350,818.83 = 139,499.68/x
  3. Step 3: Cross multiply
    254,221.39x = 350,818.83 × 139,499.68
  4. Step 4: Simplify right side
    254,221.39x = 48,939,114,522.97
  5. Step 5: Solve for x
    x = 48,939,114,522.97/254,221.39
  6. Step 6: Final answer
    x = 192,505.89

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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.