Home / 208,518.09-312,777.16-50,746.54

Finding the Fourth Proportional to 208,518.09, 312,777.16 and 50,746.54

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Solution

The fourth proportional to 208,518.09, 312,777.16 and 50,746.54 is: 76,119.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,518.09 : 312,777.16 = 50,746.54 : x
  2. Step 2: Convert to fraction form
    208,518.09/312,777.16 = 50,746.54/x
  3. Step 3: Cross multiply
    208,518.09x = 312,777.16 × 50,746.54
  4. Step 4: Simplify right side
    208,518.09x = 15,872,357,879.08
  5. Step 5: Solve for x
    x = 15,872,357,879.08/208,518.09
  6. Step 6: Final answer
    x = 76,119.81

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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.