Home / 253,054.13-379,285.94-140,680.60

Finding the Fourth Proportional to 253,054.13, 379,285.94 and 140,680.60

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Solution

The fourth proportional to 253,054.13, 379,285.94 and 140,680.60 is: 210,856.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,054.13 : 379,285.94 = 140,680.60 : x
  2. Step 2: Convert to fraction form
    253,054.13/379,285.94 = 140,680.60/x
  3. Step 3: Cross multiply
    253,054.13x = 379,285.94 × 140,680.60
  4. Step 4: Simplify right side
    253,054.13x = 53,358,173,014.25
  5. Step 5: Solve for x
    x = 53,358,173,014.25/253,054.13
  6. Step 6: Final answer
    x = 210,856.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.