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Finding the Fourth Proportional to 247,002.91, 340,859.57 and 139,570.63

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Solution

The fourth proportional to 247,002.91, 340,859.57 and 139,570.63 is: 192,604.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,002.91 : 340,859.57 = 139,570.63 : x
  2. Step 2: Convert to fraction form
    247,002.91/340,859.57 = 139,570.63/x
  3. Step 3: Cross multiply
    247,002.91x = 340,859.57 × 139,570.63
  4. Step 4: Simplify right side
    247,002.91x = 47,573,983,376.43
  5. Step 5: Solve for x
    x = 47,573,983,376.43/247,002.91
  6. Step 6: Final answer
    x = 192,604.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.