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Finding the Fourth Proportional to 202,417.67, 279,334.56 and 111,771.68

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Solution

The fourth proportional to 202,417.67, 279,334.56 and 111,771.68 is: 154,243.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,417.67 : 279,334.56 = 111,771.68 : x
  2. Step 2: Convert to fraction form
    202,417.67/279,334.56 = 111,771.68/x
  3. Step 3: Cross multiply
    202,417.67x = 279,334.56 × 111,771.68
  4. Step 4: Simplify right side
    202,417.67x = 31,221,691,656.59
  5. Step 5: Solve for x
    x = 31,221,691,656.59/202,417.67
  6. Step 6: Final answer
    x = 154,243.91

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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.