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Finding the Fourth Proportional to 306,074.10, 459,111.15 and 119,085.60

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Solution

The fourth proportional to 306,074.10, 459,111.15 and 119,085.60 is: 178,628.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,074.10 : 459,111.15 = 119,085.60 : x
  2. Step 2: Convert to fraction form
    306,074.10/459,111.15 = 119,085.60/x
  3. Step 3: Cross multiply
    306,074.10x = 459,111.15 × 119,085.60
  4. Step 4: Simplify right side
    306,074.10x = 54,673,526,764.44
  5. Step 5: Solve for x
    x = 54,673,526,764.44/306,074.10
  6. Step 6: Final answer
    x = 178,628.40

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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.