Home / 278,667.85-384,563.89-151,344.35

Finding the Fourth Proportional to 278,667.85, 384,563.89 and 151,344.35

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Solution

The fourth proportional to 278,667.85, 384,563.89 and 151,344.35 is: 208,856.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,667.85 : 384,563.89 = 151,344.35 : x
  2. Step 2: Convert to fraction form
    278,667.85/384,563.89 = 151,344.35/x
  3. Step 3: Cross multiply
    278,667.85x = 384,563.89 × 151,344.35
  4. Step 4: Simplify right side
    278,667.85x = 58,201,571,965.52
  5. Step 5: Solve for x
    x = 58,201,571,965.52/278,667.85
  6. Step 6: Final answer
    x = 208,856.43

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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.