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Finding the Third Proportional to 340,831.75 and 518,329.50

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Solution

The third proportional to 340,831.75 and 518,329.50 is: 788,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,831.75 : 518,329.50 = 518,329.50 : x
  2. Step 2: Convert to fraction form
    340,831.75/518,329.50 = 518,329.50/x
  3. Step 3: Cross multiply
    340,831.75x = 518,329.50 × 518,329.50
  4. Step 4: Simplify right side
    340,831.75x = 268,665,470,570.25
  5. Step 5: Solve for x
    x = 268,665,470,570.25/340,831.75
  6. Step 6: Final answer
    x = 788,264.21

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.