Home / 251,743.56-347,406.21-138,565.50

Finding the Fourth Proportional to 251,743.56, 347,406.21 and 138,565.50

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Solution

The fourth proportional to 251,743.56, 347,406.21 and 138,565.50 is: 191,220.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,743.56 : 347,406.21 = 138,565.50 : x
  2. Step 2: Convert to fraction form
    251,743.56/347,406.21 = 138,565.50/x
  3. Step 3: Cross multiply
    251,743.56x = 347,406.21 × 138,565.50
  4. Step 4: Simplify right side
    251,743.56x = 48,138,515,191.76
  5. Step 5: Solve for x
    x = 48,138,515,191.76/251,743.56
  6. Step 6: Final answer
    x = 191,220.44

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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.