Home / 278,632.20-384,505.93-163,918.23

Finding the Fourth Proportional to 278,632.20, 384,505.93 and 163,918.23

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Solution

The fourth proportional to 278,632.20, 384,505.93 and 163,918.23 is: 226,203.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,632.20 : 384,505.93 = 163,918.23 : x
  2. Step 2: Convert to fraction form
    278,632.20/384,505.93 = 163,918.23/x
  3. Step 3: Cross multiply
    278,632.20x = 384,505.93 × 163,918.23
  4. Step 4: Simplify right side
    278,632.20x = 63,027,532,856.97
  5. Step 5: Solve for x
    x = 63,027,532,856.97/278,632.20
  6. Step 6: Final answer
    x = 226,203.33

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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.