Home / 306,147.30-422,492.41-185,310.69

Finding the Fourth Proportional to 306,147.30, 422,492.41 and 185,310.69

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Solution

The fourth proportional to 306,147.30, 422,492.41 and 185,310.69 is: 255,734.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,147.30 : 422,492.41 = 185,310.69 : x
  2. Step 2: Convert to fraction form
    306,147.30/422,492.41 = 185,310.69/x
  3. Step 3: Cross multiply
    306,147.30x = 422,492.41 × 185,310.69
  4. Step 4: Simplify right side
    306,147.30x = 78,292,357,621.78
  5. Step 5: Solve for x
    x = 78,292,357,621.78/306,147.30
  6. Step 6: Final answer
    x = 255,734.28

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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.