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Finding the Third Proportional to 358,521 and 550,315.75

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Solution

The third proportional to 358,521 and 550,315.75 is: 844,713.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,521 : 550,315.75 = 550,315.75 : x
  2. Step 2: Convert to fraction form
    358,521/550,315.75 = 550,315.75/x
  3. Step 3: Cross multiply
    358,521x = 550,315.75 × 550,315.75
  4. Step 4: Simplify right side
    358,521x = 302,847,424,698.06
  5. Step 5: Solve for x
    x = 302,847,424,698.06/358,521
  6. Step 6: Final answer
    x = 844,713.21

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.