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Finding the Fourth Proportional to 254,655.52, 351,424.54 and 139,941.56

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Solution

The fourth proportional to 254,655.52, 351,424.54 and 139,941.56 is: 193,119.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,655.52 : 351,424.54 = 139,941.56 : x
  2. Step 2: Convert to fraction form
    254,655.52/351,424.54 = 139,941.56/x
  3. Step 3: Cross multiply
    254,655.52x = 351,424.54 × 139,941.56
  4. Step 4: Simplify right side
    254,655.52x = 49,178,898,349.88
  5. Step 5: Solve for x
    x = 49,178,898,349.88/254,655.52
  6. Step 6: Final answer
    x = 193,119.31

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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.