Home / 227,588.48-314,128.32-138,239.36

Finding the Fourth Proportional to 227,588.48, 314,128.32 and 138,239.36

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Solution

The fourth proportional to 227,588.48, 314,128.32 and 138,239.36 is: 190,804.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,588.48 : 314,128.32 = 138,239.36 : x
  2. Step 2: Convert to fraction form
    227,588.48/314,128.32 = 138,239.36/x
  3. Step 3: Cross multiply
    227,588.48x = 314,128.32 × 138,239.36
  4. Step 4: Simplify right side
    227,588.48x = 43,424,897,914.68
  5. Step 5: Solve for x
    x = 43,424,897,914.68/227,588.48
  6. Step 6: Final answer
    x = 190,804.46

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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.