Home / 251,971.94-347,721.29-138,794.69

Finding the Fourth Proportional to 251,971.94, 347,721.29 and 138,794.69

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Solution

The fourth proportional to 251,971.94, 347,721.29 and 138,794.69 is: 191,536.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,971.94 : 347,721.29 = 138,794.69 : x
  2. Step 2: Convert to fraction form
    251,971.94/347,721.29 = 138,794.69/x
  3. Step 3: Cross multiply
    251,971.94x = 347,721.29 × 138,794.69
  4. Step 4: Simplify right side
    251,971.94x = 48,261,866,219.37
  5. Step 5: Solve for x
    x = 48,261,866,219.37/251,971.94
  6. Step 6: Final answer
    x = 191,536.67

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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.