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Finding the Third Proportional to 249,079 and 389,173

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Solution

The third proportional to 249,079 and 389,173 is: 608,062.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,079 : 389,173 = 389,173 : x
  2. Step 2: Convert to fraction form
    249,079/389,173 = 389,173/x
  3. Step 3: Cross multiply
    249,079x = 389,173 × 389,173
  4. Step 4: Simplify right side
    249,079x = 151,455,623,929
  5. Step 5: Solve for x
    x = 151,455,623,929/249,079
  6. Step 6: Final answer
    x = 608,062.60

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.