Home / 420,104.31-630,156.85-180,062.44

Finding the Fourth Proportional to 420,104.31, 630,156.85 and 180,062.44

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Solution

The fourth proportional to 420,104.31, 630,156.85 and 180,062.44 is: 270,093.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,104.31 : 630,156.85 = 180,062.44 : x
  2. Step 2: Convert to fraction form
    420,104.31/630,156.85 = 180,062.44/x
  3. Step 3: Cross multiply
    420,104.31x = 630,156.85 × 180,062.44
  4. Step 4: Simplify right side
    420,104.31x = 113,467,579,993.71
  5. Step 5: Solve for x
    x = 113,467,579,993.71/420,104.31
  6. Step 6: Final answer
    x = 270,093.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.