Home / 211,899.70-319,338.07-190,866.16

Finding the Fourth Proportional to 211,899.70, 319,338.07 and 190,866.16

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Solution

The fourth proportional to 211,899.70, 319,338.07 and 190,866.16 is: 287,640.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,899.70 : 319,338.07 = 190,866.16 : x
  2. Step 2: Convert to fraction form
    211,899.70/319,338.07 = 190,866.16/x
  3. Step 3: Cross multiply
    211,899.70x = 319,338.07 × 190,866.16
  4. Step 4: Simplify right side
    211,899.70x = 60,950,831,162.71
  5. Step 5: Solve for x
    x = 60,950,831,162.71/211,899.70
  6. Step 6: Final answer
    x = 287,640.01

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.