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Finding the Fourth Proportional to 290,449.49, 400,823.12 and 167,932.67

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Solution

The fourth proportional to 290,449.49, 400,823.12 and 167,932.67 is: 231,748.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,449.49 : 400,823.12 = 167,932.67 : x
  2. Step 2: Convert to fraction form
    290,449.49/400,823.12 = 167,932.67/x
  3. Step 3: Cross multiply
    290,449.49x = 400,823.12 × 167,932.67
  4. Step 4: Simplify right side
    290,449.49x = 67,311,295,899.67
  5. Step 5: Solve for x
    x = 67,311,295,899.67/290,449.49
  6. Step 6: Final answer
    x = 231,748.71

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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.