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Finding the Third Proportional to 210,442 and 314,772

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Solution

The third proportional to 210,442 and 314,772 is: 470,825.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,442 : 314,772 = 314,772 : x
  2. Step 2: Convert to fraction form
    210,442/314,772 = 314,772/x
  3. Step 3: Cross multiply
    210,442x = 314,772 × 314,772
  4. Step 4: Simplify right side
    210,442x = 99,081,411,984
  5. Step 5: Solve for x
    x = 99,081,411,984/210,442
  6. Step 6: Final answer
    x = 470,825.27

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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.