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Finding the Fourth Proportional to 254,905.80, 351,865.44 and 191,427

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Solution

The fourth proportional to 254,905.80, 351,865.44 and 191,427 is: 264,240.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,905.80 : 351,865.44 = 191,427 : x
  2. Step 2: Convert to fraction form
    254,905.80/351,865.44 = 191,427/x
  3. Step 3: Cross multiply
    254,905.80x = 351,865.44 × 191,427
  4. Step 4: Simplify right side
    254,905.80x = 67,356,545,582.88
  5. Step 5: Solve for x
    x = 67,356,545,582.88/254,905.80
  6. Step 6: Final answer
    x = 264,240.93

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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.