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Finding the Third Proportional to 71,476 and 156,776

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Solution

The third proportional to 71,476 and 156,776 is: 343,873.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,476 : 156,776 = 156,776 : x
  2. Step 2: Convert to fraction form
    71,476/156,776 = 156,776/x
  3. Step 3: Cross multiply
    71,476x = 156,776 × 156,776
  4. Step 4: Simplify right side
    71,476x = 24,578,714,176
  5. Step 5: Solve for x
    x = 24,578,714,176/71,476
  6. Step 6: Final answer
    x = 343,873.67

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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.