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Finding the Third Proportional to 68,352 and 147,072

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Solution

The third proportional to 68,352 and 147,072 is: 316,452.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,352 : 147,072 = 147,072 : x
  2. Step 2: Convert to fraction form
    68,352/147,072 = 147,072/x
  3. Step 3: Cross multiply
    68,352x = 147,072 × 147,072
  4. Step 4: Simplify right side
    68,352x = 21,630,173,184
  5. Step 5: Solve for x
    x = 21,630,173,184/68,352
  6. Step 6: Final answer
    x = 316,452.67

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.