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Finding the Third Proportional to 140,478 and 249,804

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Solution

The third proportional to 140,478 and 249,804 is: 444,212.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,478 : 249,804 = 249,804 : x
  2. Step 2: Convert to fraction form
    140,478/249,804 = 249,804/x
  3. Step 3: Cross multiply
    140,478x = 249,804 × 249,804
  4. Step 4: Simplify right side
    140,478x = 62,402,038,416
  5. Step 5: Solve for x
    x = 62,402,038,416/140,478
  6. Step 6: Final answer
    x = 444,212.18

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.