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Finding the Third Proportional to 315,186 and 484,440

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Solution

The third proportional to 315,186 and 484,440 is: 744,582.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,186 : 484,440 = 484,440 : x
  2. Step 2: Convert to fraction form
    315,186/484,440 = 484,440/x
  3. Step 3: Cross multiply
    315,186x = 484,440 × 484,440
  4. Step 4: Simplify right side
    315,186x = 234,682,113,600
  5. Step 5: Solve for x
    x = 234,682,113,600/315,186
  6. Step 6: Final answer
    x = 744,582.92

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.