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Finding the Fourth Proportional to 251,028, 346,418.64 and 137,852.64

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Solution

The fourth proportional to 251,028, 346,418.64 and 137,852.64 is: 190,236.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,028 : 346,418.64 = 137,852.64 : x
  2. Step 2: Convert to fraction form
    251,028/346,418.64 = 137,852.64/x
  3. Step 3: Cross multiply
    251,028x = 346,418.64 × 137,852.64
  4. Step 4: Simplify right side
    251,028x = 47,754,724,069.21
  5. Step 5: Solve for x
    x = 47,754,724,069.21/251,028
  6. Step 6: Final answer
    x = 190,236.64

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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.