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Finding the Fourth Proportional to 483,065.72, 666,647.70 and 268,209.08

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Solution

The fourth proportional to 483,065.72, 666,647.70 and 268,209.08 is: 370,137.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,065.72 : 666,647.70 = 268,209.08 : x
  2. Step 2: Convert to fraction form
    483,065.72/666,647.70 = 268,209.08/x
  3. Step 3: Cross multiply
    483,065.72x = 666,647.70 × 268,209.08
  4. Step 4: Simplify right side
    483,065.72x = 178,800,966,301.12
  5. Step 5: Solve for x
    x = 178,800,966,301.12/483,065.72
  6. Step 6: Final answer
    x = 370,137.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.