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Finding the Fourth Proportional to 251,019.56, 346,409.40 and 137,844.68

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Solution

The fourth proportional to 251,019.56, 346,409.40 and 137,844.68 is: 190,226.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,019.56 : 346,409.40 = 137,844.68 : x
  2. Step 2: Convert to fraction form
    251,019.56/346,409.40 = 137,844.68/x
  3. Step 3: Cross multiply
    251,019.56x = 346,409.40 × 137,844.68
  4. Step 4: Simplify right side
    251,019.56x = 47,750,692,891.99
  5. Step 5: Solve for x
    x = 47,750,692,891.99/251,019.56
  6. Step 6: Final answer
    x = 190,226.98

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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.