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Finding the Third Proportional to 316,152 and 562,128

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Solution

The third proportional to 316,152 and 562,128 is: 999,480.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,152 : 562,128 = 562,128 : x
  2. Step 2: Convert to fraction form
    316,152/562,128 = 562,128/x
  3. Step 3: Cross multiply
    316,152x = 562,128 × 562,128
  4. Step 4: Simplify right side
    316,152x = 315,987,888,384
  5. Step 5: Solve for x
    x = 315,987,888,384/316,152
  6. Step 6: Final answer
    x = 999,480.91

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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.