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Finding the Fourth Proportional to 251,208.96, 346,674.72 and 138,034.56

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Solution

The fourth proportional to 251,208.96, 346,674.72 and 138,034.56 is: 190,491.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,208.96 : 346,674.72 = 138,034.56 : x
  2. Step 2: Convert to fraction form
    251,208.96/346,674.72 = 138,034.56/x
  3. Step 3: Cross multiply
    251,208.96x = 346,674.72 × 138,034.56
  4. Step 4: Simplify right side
    251,208.96x = 47,853,092,438.32
  5. Step 5: Solve for x
    x = 47,853,092,438.32/251,208.96
  6. Step 6: Final answer
    x = 190,491.18

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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.