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Finding the Fourth Proportional to 288,772.67, 398,346.29 and 167,900.59

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Solution

The fourth proportional to 288,772.67, 398,346.29 and 167,900.59 is: 231,609.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,772.67 : 398,346.29 = 167,900.59 : x
  2. Step 2: Convert to fraction form
    288,772.67/398,346.29 = 167,900.59/x
  3. Step 3: Cross multiply
    288,772.67x = 398,346.29 × 167,900.59
  4. Step 4: Simplify right side
    288,772.67x = 66,882,577,403.37
  5. Step 5: Solve for x
    x = 66,882,577,403.37/288,772.67
  6. Step 6: Final answer
    x = 231,609.79

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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.