Home / 197,291.55-272,289-111,268.22

Finding the Fourth Proportional to 197,291.55, 272,289 and 111,268.22

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Solution

The fourth proportional to 197,291.55, 272,289 and 111,268.22 is: 153,565.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,291.55 : 272,289 = 111,268.22 : x
  2. Step 2: Convert to fraction form
    197,291.55/272,289 = 111,268.22/x
  3. Step 3: Cross multiply
    197,291.55x = 272,289 × 111,268.22
  4. Step 4: Simplify right side
    197,291.55x = 30,297,110,994.14
  5. Step 5: Solve for x
    x = 30,297,110,994.14/197,291.55
  6. Step 6: Final answer
    x = 153,565.17

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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.