Home / 251,438.81-346,985.56-138,261.56

Finding the Fourth Proportional to 251,438.81, 346,985.56 and 138,261.56

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Solution

The fourth proportional to 251,438.81, 346,985.56 and 138,261.56 is: 190,800.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,438.81 : 346,985.56 = 138,261.56 : x
  2. Step 2: Convert to fraction form
    251,438.81/346,985.56 = 138,261.56/x
  3. Step 3: Cross multiply
    251,438.81x = 346,985.56 × 138,261.56
  4. Step 4: Simplify right side
    251,438.81x = 47,974,764,823.07
  5. Step 5: Solve for x
    x = 47,974,764,823.07/251,438.81
  6. Step 6: Final answer
    x = 190,800.95

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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.