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Finding the Third Proportional to 144,630 and 316,368

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Solution

The third proportional to 144,630 and 316,368 is: 692,032.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,630 : 316,368 = 316,368 : x
  2. Step 2: Convert to fraction form
    144,630/316,368 = 316,368/x
  3. Step 3: Cross multiply
    144,630x = 316,368 × 316,368
  4. Step 4: Simplify right side
    144,630x = 100,088,711,424
  5. Step 5: Solve for x
    x = 100,088,711,424/144,630
  6. Step 6: Final answer
    x = 692,032.85

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.