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Finding the Third Proportional to 315,009 and 474,133.50

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Solution

The third proportional to 315,009 and 474,133.50 is: 713,638.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,009 : 474,133.50 = 474,133.50 : x
  2. Step 2: Convert to fraction form
    315,009/474,133.50 = 474,133.50/x
  3. Step 3: Cross multiply
    315,009x = 474,133.50 × 474,133.50
  4. Step 4: Simplify right side
    315,009x = 224,802,575,822.25
  5. Step 5: Solve for x
    x = 224,802,575,822.25/315,009
  6. Step 6: Final answer
    x = 713,638.58

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.