Home / 258,918.09-357,299.71-144,196.69

Finding the Fourth Proportional to 258,918.09, 357,299.71 and 144,196.69

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Solution

The fourth proportional to 258,918.09, 357,299.71 and 144,196.69 is: 198,987.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,918.09 : 357,299.71 = 144,196.69 : x
  2. Step 2: Convert to fraction form
    258,918.09/357,299.71 = 144,196.69/x
  3. Step 3: Cross multiply
    258,918.09x = 357,299.71 × 144,196.69
  4. Step 4: Simplify right side
    258,918.09x = 51,521,435,519.96
  5. Step 5: Solve for x
    x = 51,521,435,519.96/258,918.09
  6. Step 6: Final answer
    x = 198,987.39

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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.