Home / 278,383.10-384,176.12-151,058.79

Finding the Fourth Proportional to 278,383.10, 384,176.12 and 151,058.79

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Solution

The fourth proportional to 278,383.10, 384,176.12 and 151,058.79 is: 208,465.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,383.10 : 384,176.12 = 151,058.79 : x
  2. Step 2: Convert to fraction form
    278,383.10/384,176.12 = 151,058.79/x
  3. Step 3: Cross multiply
    278,383.10x = 384,176.12 × 151,058.79
  4. Step 4: Simplify right side
    278,383.10x = 58,033,179,078.80
  5. Step 5: Solve for x
    x = 58,033,179,078.80/278,383.10
  6. Step 6: Final answer
    x = 208,465.17

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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.