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Finding the Third Proportional to 249,059.25 and 389,140.88

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Solution

The third proportional to 249,059.25 and 389,140.88 is: 608,010.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,059.25 : 389,140.88 = 389,140.88 : x
  2. Step 2: Convert to fraction form
    249,059.25/389,140.88 = 389,140.88/x
  3. Step 3: Cross multiply
    249,059.25x = 389,140.88 × 389,140.88
  4. Step 4: Simplify right side
    249,059.25x = 151,430,620,595.77
  5. Step 5: Solve for x
    x = 151,430,620,595.77/249,059.25
  6. Step 6: Final answer
    x = 608,010.43

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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.