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Finding the Fourth Proportional to 306,251.40, 458,081.10 and 274,888.20

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Solution

The fourth proportional to 306,251.40, 458,081.10 and 274,888.20 is: 411,169.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,251.40 : 458,081.10 = 274,888.20 : x
  2. Step 2: Convert to fraction form
    306,251.40/458,081.10 = 274,888.20/x
  3. Step 3: Cross multiply
    306,251.40x = 458,081.10 × 274,888.20
  4. Step 4: Simplify right side
    306,251.40x = 125,921,089,033.02
  5. Step 5: Solve for x
    x = 125,921,089,033.02/306,251.40
  6. Step 6: Final answer
    x = 411,169.02

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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.