Home / 278,623.87-384,497.55-151,300.37

Finding the Fourth Proportional to 278,623.87, 384,497.55 and 151,300.37

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Solution

The fourth proportional to 278,623.87, 384,497.55 and 151,300.37 is: 208,792.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,623.87 : 384,497.55 = 151,300.37 : x
  2. Step 2: Convert to fraction form
    278,623.87/384,497.55 = 151,300.37/x
  3. Step 3: Cross multiply
    278,623.87x = 384,497.55 × 151,300.37
  4. Step 4: Simplify right side
    278,623.87x = 58,174,622,540.34
  5. Step 5: Solve for x
    x = 58,174,622,540.34/278,623.87
  6. Step 6: Final answer
    x = 208,792.67

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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.