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Finding the Third Proportional to 405,448.50 and 608,173.50

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Solution

The third proportional to 405,448.50 and 608,173.50 is: 912,261.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,448.50 : 608,173.50 = 608,173.50 : x
  2. Step 2: Convert to fraction form
    405,448.50/608,173.50 = 608,173.50/x
  3. Step 3: Cross multiply
    405,448.50x = 608,173.50 × 608,173.50
  4. Step 4: Simplify right side
    405,448.50x = 369,875,006,102.25
  5. Step 5: Solve for x
    x = 369,875,006,102.25/405,448.50
  6. Step 6: Final answer
    x = 912,261.38

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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.