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Finding the Fourth Proportional to 247,756.50, 371,690.14 and 79,286.94

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Solution

The fourth proportional to 247,756.50, 371,690.14 and 79,286.94 is: 118,948.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,756.50 : 371,690.14 = 79,286.94 : x
  2. Step 2: Convert to fraction form
    247,756.50/371,690.14 = 79,286.94/x
  3. Step 3: Cross multiply
    247,756.50x = 371,690.14 × 79,286.94
  4. Step 4: Simplify right side
    247,756.50x = 29,470,173,828.77
  5. Step 5: Solve for x
    x = 29,470,173,828.77/247,756.50
  6. Step 6: Final answer
    x = 118,948.14

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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.