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Finding the Third Proportional to 262,722.50 and 407,637.50

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Solution

The third proportional to 262,722.50 and 407,637.50 is: 632,486.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,722.50 : 407,637.50 = 407,637.50 : x
  2. Step 2: Convert to fraction form
    262,722.50/407,637.50 = 407,637.50/x
  3. Step 3: Cross multiply
    262,722.50x = 407,637.50 × 407,637.50
  4. Step 4: Simplify right side
    262,722.50x = 166,168,331,406.25
  5. Step 5: Solve for x
    x = 166,168,331,406.25/262,722.50
  6. Step 6: Final answer
    x = 632,486.11

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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.