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Finding the Fourth Proportional to 308,889.30, 462,815.55 and 264,306.90

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Solution

The fourth proportional to 308,889.30, 462,815.55 and 264,306.90 is: 396,016.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,889.30 : 462,815.55 = 264,306.90 : x
  2. Step 2: Convert to fraction form
    308,889.30/462,815.55 = 264,306.90/x
  3. Step 3: Cross multiply
    308,889.30x = 462,815.55 × 264,306.90
  4. Step 4: Simplify right side
    308,889.30x = 122,325,343,292.30
  5. Step 5: Solve for x
    x = 122,325,343,292.30/308,889.30
  6. Step 6: Final answer
    x = 396,016.77

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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.