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Finding the Fourth Proportional to 247,636.76, 371,536.14 and 79,184.84

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Solution

The fourth proportional to 247,636.76, 371,536.14 and 79,184.84 is: 118,803.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,636.76 : 371,536.14 = 79,184.84 : x
  2. Step 2: Convert to fraction form
    247,636.76/371,536.14 = 79,184.84/x
  3. Step 3: Cross multiply
    247,636.76x = 371,536.14 × 79,184.84
  4. Step 4: Simplify right side
    247,636.76x = 29,420,029,800.12
  5. Step 5: Solve for x
    x = 29,420,029,800.12/247,636.76
  6. Step 6: Final answer
    x = 118,803.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.