Home / 259,370.22-389,055.46-69,831.02

Finding the Fourth Proportional to 259,370.22, 389,055.46 and 69,831.02

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Solution

The fourth proportional to 259,370.22, 389,055.46 and 69,831.02 is: 104,746.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,370.22 : 389,055.46 = 69,831.02 : x
  2. Step 2: Convert to fraction form
    259,370.22/389,055.46 = 69,831.02/x
  3. Step 3: Cross multiply
    259,370.22x = 389,055.46 × 69,831.02
  4. Step 4: Simplify right side
    259,370.22x = 27,168,139,608.37
  5. Step 5: Solve for x
    x = 27,168,139,608.37/259,370.22
  6. Step 6: Final answer
    x = 104,746.57

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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.