Home / 306,476.04-422,697.30-199,080.67

Finding the Fourth Proportional to 306,476.04, 422,697.30 and 199,080.67

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Solution

The fourth proportional to 306,476.04, 422,697.30 and 199,080.67 is: 274,575.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,476.04 : 422,697.30 = 199,080.67 : x
  2. Step 2: Convert to fraction form
    306,476.04/422,697.30 = 199,080.67/x
  3. Step 3: Cross multiply
    306,476.04x = 422,697.30 × 199,080.67
  4. Step 4: Simplify right side
    306,476.04x = 84,150,861,691.19
  5. Step 5: Solve for x
    x = 84,150,861,691.19/306,476.04
  6. Step 6: Final answer
    x = 274,575.66

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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.