Home / 258,947.07-357,321.44-144,221.80

Finding the Fourth Proportional to 258,947.07, 357,321.44 and 144,221.80

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Solution

The fourth proportional to 258,947.07, 357,321.44 and 144,221.80 is: 199,011.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,947.07 : 357,321.44 = 144,221.80 : x
  2. Step 2: Convert to fraction form
    258,947.07/357,321.44 = 144,221.80/x
  3. Step 3: Cross multiply
    258,947.07x = 357,321.44 × 144,221.80
  4. Step 4: Simplify right side
    258,947.07x = 51,533,541,255.39
  5. Step 5: Solve for x
    x = 51,533,541,255.39/258,947.07
  6. Step 6: Final answer
    x = 199,011.87

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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.