Home / 258,383.58-387,584.01-89,918.05

Finding the Fourth Proportional to 258,383.58, 387,584.01 and 89,918.05

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Solution

The fourth proportional to 258,383.58, 387,584.01 and 89,918.05 is: 134,880.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,383.58 : 387,584.01 = 89,918.05 : x
  2. Step 2: Convert to fraction form
    258,383.58/387,584.01 = 89,918.05/x
  3. Step 3: Cross multiply
    258,383.58x = 387,584.01 × 89,918.05
  4. Step 4: Simplify right side
    258,383.58x = 34,850,798,390.38
  5. Step 5: Solve for x
    x = 34,850,798,390.38/258,383.58
  6. Step 6: Final answer
    x = 134,880.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.