Home / 251,438.31-346,984.87-138,261.06

Finding the Fourth Proportional to 251,438.31, 346,984.87 and 138,261.06

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Solution

The fourth proportional to 251,438.31, 346,984.87 and 138,261.06 is: 190,800.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,438.31 : 346,984.87 = 138,261.06 : x
  2. Step 2: Convert to fraction form
    251,438.31/346,984.87 = 138,261.06/x
  3. Step 3: Cross multiply
    251,438.31x = 346,984.87 × 138,261.06
  4. Step 4: Simplify right side
    251,438.31x = 47,974,495,930.16
  5. Step 5: Solve for x
    x = 47,974,495,930.16/251,438.31
  6. Step 6: Final answer
    x = 190,800.26

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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.