Home / 251,972.64-347,722.28-138,795.39

Finding the Fourth Proportional to 251,972.64, 347,722.28 and 138,795.39

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Solution

The fourth proportional to 251,972.64, 347,722.28 and 138,795.39 is: 191,537.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,972.64 : 347,722.28 = 138,795.39 : x
  2. Step 2: Convert to fraction form
    251,972.64/347,722.28 = 138,795.39/x
  3. Step 3: Cross multiply
    251,972.64x = 347,722.28 × 138,795.39
  4. Step 4: Simplify right side
    251,972.64x = 48,262,248,770.31
  5. Step 5: Solve for x
    x = 48,262,248,770.31/251,972.64
  6. Step 6: Final answer
    x = 191,537.66

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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.