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Finding the Fourth Proportional to 280,122.60, 420,183.90 and 93,134.10

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Solution

The fourth proportional to 280,122.60, 420,183.90 and 93,134.10 is: 139,701.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,122.60 : 420,183.90 = 93,134.10 : x
  2. Step 2: Convert to fraction form
    280,122.60/420,183.90 = 93,134.10/x
  3. Step 3: Cross multiply
    280,122.60x = 420,183.90 × 93,134.10
  4. Step 4: Simplify right side
    280,122.60x = 39,133,449,360.99
  5. Step 5: Solve for x
    x = 39,133,449,360.99/280,122.60
  6. Step 6: Final answer
    x = 139,701.15

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1.5x scale

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.