Home / 251,882.24-347,598-138,705.20

Finding the Fourth Proportional to 251,882.24, 347,598 and 138,705.20

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Solution

The fourth proportional to 251,882.24, 347,598 and 138,705.20 is: 191,413.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,882.24 : 347,598 = 138,705.20 : x
  2. Step 2: Convert to fraction form
    251,882.24/347,598 = 138,705.20/x
  3. Step 3: Cross multiply
    251,882.24x = 347,598 × 138,705.20
  4. Step 4: Simplify right side
    251,882.24x = 48,213,650,109.60
  5. Step 5: Solve for x
    x = 48,213,650,109.60/251,882.24
  6. Step 6: Final answer
    x = 191,413.46

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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.