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Finding the Fourth Proportional to 420,366.87, 630,532.67 and 195,650.01

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Solution

The fourth proportional to 420,366.87, 630,532.67 and 195,650.01 is: 293,466.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,366.87 : 630,532.67 = 195,650.01 : x
  2. Step 2: Convert to fraction form
    420,366.87/630,532.67 = 195,650.01/x
  3. Step 3: Cross multiply
    420,366.87x = 630,532.67 × 195,650.01
  4. Step 4: Simplify right side
    420,366.87x = 123,363,722,212.58
  5. Step 5: Solve for x
    x = 123,363,722,212.58/420,366.87
  6. Step 6: Final answer
    x = 293,466.80

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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.