Home / 211,208.21-291,475.37-120,578.93

Finding the Fourth Proportional to 211,208.21, 291,475.37 and 120,578.93

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Solution

The fourth proportional to 211,208.21, 291,475.37 and 120,578.93 is: 166,403.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,208.21 : 291,475.37 = 120,578.93 : x
  2. Step 2: Convert to fraction form
    211,208.21/291,475.37 = 120,578.93/x
  3. Step 3: Cross multiply
    211,208.21x = 291,475.37 × 120,578.93
  4. Step 4: Simplify right side
    211,208.21x = 35,145,787,633.06
  5. Step 5: Solve for x
    x = 35,145,787,633.06/211,208.21
  6. Step 6: Final answer
    x = 166,403.51

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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.