Home / 278,329.51-384,091.27-151,004.17

Finding the Fourth Proportional to 278,329.51, 384,091.27 and 151,004.17

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Solution

The fourth proportional to 278,329.51, 384,091.27 and 151,004.17 is: 208,383.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,329.51 : 384,091.27 = 151,004.17 : x
  2. Step 2: Convert to fraction form
    278,329.51/384,091.27 = 151,004.17/x
  3. Step 3: Cross multiply
    278,329.51x = 384,091.27 × 151,004.17
  4. Step 4: Simplify right side
    278,329.51x = 57,999,383,430.60
  5. Step 5: Solve for x
    x = 57,999,383,430.60/278,329.51
  6. Step 6: Final answer
    x = 208,383.88

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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.