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Finding the Third Proportional to 249,581.25 and 407,497.50

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Solution

The third proportional to 249,581.25 and 407,497.50 is: 665,331.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,581.25 : 407,497.50 = 407,497.50 : x
  2. Step 2: Convert to fraction form
    249,581.25/407,497.50 = 407,497.50/x
  3. Step 3: Cross multiply
    249,581.25x = 407,497.50 × 407,497.50
  4. Step 4: Simplify right side
    249,581.25x = 166,054,212,506.25
  5. Step 5: Solve for x
    x = 166,054,212,506.25/249,581.25
  6. Step 6: Final answer
    x = 665,331.28

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.