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Finding the Third Proportional to 319,315.50 and 480,303

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Solution

The third proportional to 319,315.50 and 480,303 is: 722,454.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,315.50 : 480,303 = 480,303 : x
  2. Step 2: Convert to fraction form
    319,315.50/480,303 = 480,303/x
  3. Step 3: Cross multiply
    319,315.50x = 480,303 × 480,303
  4. Step 4: Simplify right side
    319,315.50x = 230,690,971,809
  5. Step 5: Solve for x
    x = 230,690,971,809/319,315.50
  6. Step 6: Final answer
    x = 722,454.66

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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.