Home / 282,048.20-422,850.36-139,795.64

Finding the Fourth Proportional to 282,048.20, 422,850.36 and 139,795.64

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Solution

The fourth proportional to 282,048.20, 422,850.36 and 139,795.64 is: 209,583.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,048.20 : 422,850.36 = 139,795.64 : x
  2. Step 2: Convert to fraction form
    282,048.20/422,850.36 = 139,795.64/x
  3. Step 3: Cross multiply
    282,048.20x = 422,850.36 × 139,795.64
  4. Step 4: Simplify right side
    282,048.20x = 59,112,636,700.43
  5. Step 5: Solve for x
    x = 59,112,636,700.43/282,048.20
  6. Step 6: Final answer
    x = 209,583.46

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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.