Home / 278,383.03-384,147.46-163,666.37

Finding the Fourth Proportional to 278,383.03, 384,147.46 and 163,666.37

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Solution

The fourth proportional to 278,383.03, 384,147.46 and 163,666.37 is: 225,847.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,383.03 : 384,147.46 = 163,666.37 : x
  2. Step 2: Convert to fraction form
    278,383.03/384,147.46 = 163,666.37/x
  3. Step 3: Cross multiply
    278,383.03x = 384,147.46 × 163,666.37
  4. Step 4: Simplify right side
    278,383.03x = 62,872,021,487.87
  5. Step 5: Solve for x
    x = 62,872,021,487.87/278,383.03
  6. Step 6: Final answer
    x = 225,847.18

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1.5x scale

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.