Home / 190,858.40-286,287.60-189,108.80

Finding the Fourth Proportional to 190,858.40, 286,287.60 and 189,108.80

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Solution

The fourth proportional to 190,858.40, 286,287.60 and 189,108.80 is: 283,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,858.40 : 286,287.60 = 189,108.80 : x
  2. Step 2: Convert to fraction form
    190,858.40/286,287.60 = 189,108.80/x
  3. Step 3: Cross multiply
    190,858.40x = 286,287.60 × 189,108.80
  4. Step 4: Simplify right side
    190,858.40x = 54,139,504,490.88
  5. Step 5: Solve for x
    x = 54,139,504,490.88/190,858.40
  6. Step 6: Final answer
    x = 283,663.20

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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.