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Finding the Third Proportional to 304,219 and 472,920

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Solution

The third proportional to 304,219 and 472,920 is: 735,172.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,219 : 472,920 = 472,920 : x
  2. Step 2: Convert to fraction form
    304,219/472,920 = 472,920/x
  3. Step 3: Cross multiply
    304,219x = 472,920 × 472,920
  4. Step 4: Simplify right side
    304,219x = 223,653,326,400
  5. Step 5: Solve for x
    x = 223,653,326,400/304,219
  6. Step 6: Final answer
    x = 735,172.12

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.