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Finding the Fourth Proportional to 306,009.45, 459,014.19 and 260,738.55

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Solution

The fourth proportional to 306,009.45, 459,014.19 and 260,738.55 is: 391,107.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,009.45 : 459,014.19 = 260,738.55 : x
  2. Step 2: Convert to fraction form
    306,009.45/459,014.19 = 260,738.55/x
  3. Step 3: Cross multiply
    306,009.45x = 459,014.19 × 260,738.55
  4. Step 4: Simplify right side
    306,009.45x = 119,682,694,330.02
  5. Step 5: Solve for x
    x = 119,682,694,330.02/306,009.45
  6. Step 6: Final answer
    x = 391,107.84

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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.