Home / 245,657.15-339,004.67-138,225.04

Finding the Fourth Proportional to 245,657.15, 339,004.67 and 138,225.04

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Solution

The fourth proportional to 245,657.15, 339,004.67 and 138,225.04 is: 190,749.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,657.15 : 339,004.67 = 138,225.04 : x
  2. Step 2: Convert to fraction form
    245,657.15/339,004.67 = 138,225.04/x
  3. Step 3: Cross multiply
    245,657.15x = 339,004.67 × 138,225.04
  4. Step 4: Simplify right side
    245,657.15x = 46,858,932,375.91
  5. Step 5: Solve for x
    x = 46,858,932,375.91/245,657.15
  6. Step 6: Final answer
    x = 190,749.31

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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.