Home / 312,601.22-431,390.12-169,361.27

Finding the Fourth Proportional to 312,601.22, 431,390.12 and 169,361.27

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Solution

The fourth proportional to 312,601.22, 431,390.12 and 169,361.27 is: 233,718.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,601.22 : 431,390.12 = 169,361.27 : x
  2. Step 2: Convert to fraction form
    312,601.22/431,390.12 = 169,361.27/x
  3. Step 3: Cross multiply
    312,601.22x = 431,390.12 × 169,361.27
  4. Step 4: Simplify right side
    312,601.22x = 73,060,778,820.32
  5. Step 5: Solve for x
    x = 73,060,778,820.32/312,601.22
  6. Step 6: Final answer
    x = 233,718.79

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1.5x scale

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.