Home / 293,730.09-440,604.71-139,822.70

Finding the Fourth Proportional to 293,730.09, 440,604.71 and 139,822.70

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Solution

The fourth proportional to 293,730.09, 440,604.71 and 139,822.70 is: 209,738.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,730.09 : 440,604.71 = 139,822.70 : x
  2. Step 2: Convert to fraction form
    293,730.09/440,604.71 = 139,822.70/x
  3. Step 3: Cross multiply
    293,730.09x = 440,604.71 × 139,822.70
  4. Step 4: Simplify right side
    293,730.09x = 61,606,539,485.80
  5. Step 5: Solve for x
    x = 61,606,539,485.80/293,730.09
  6. Step 6: Final answer
    x = 209,738.61

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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.