Home / 420,296.12-630,089.34-195,540.52

Finding the Fourth Proportional to 420,296.12, 630,089.34 and 195,540.52

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Solution

The fourth proportional to 420,296.12, 630,089.34 and 195,540.52 is: 293,145.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,296.12 : 630,089.34 = 195,540.52 : x
  2. Step 2: Convert to fraction form
    420,296.12/630,089.34 = 195,540.52/x
  3. Step 3: Cross multiply
    420,296.12x = 630,089.34 × 195,540.52
  4. Step 4: Simplify right side
    420,296.12x = 123,207,997,190.06
  5. Step 5: Solve for x
    x = 123,207,997,190.06/420,296.12
  6. Step 6: Final answer
    x = 293,145.69

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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.