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Finding the Third Proportional to 285,271.50 and 398,806.50

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Solution

The third proportional to 285,271.50 and 398,806.50 is: 557,527.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,271.50 : 398,806.50 = 398,806.50 : x
  2. Step 2: Convert to fraction form
    285,271.50/398,806.50 = 398,806.50/x
  3. Step 3: Cross multiply
    285,271.50x = 398,806.50 × 398,806.50
  4. Step 4: Simplify right side
    285,271.50x = 159,046,624,442.25
  5. Step 5: Solve for x
    x = 159,046,624,442.25/285,271.50
  6. Step 6: Final answer
    x = 557,527.21

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.