Home / 211,378.54-291,702.31-115,883.19

Finding the Fourth Proportional to 211,378.54, 291,702.31 and 115,883.19

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Solution

The fourth proportional to 211,378.54, 291,702.31 and 115,883.19 is: 159,918.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,378.54 : 291,702.31 = 115,883.19 : x
  2. Step 2: Convert to fraction form
    211,378.54/291,702.31 = 115,883.19/x
  3. Step 3: Cross multiply
    211,378.54x = 291,702.31 × 115,883.19
  4. Step 4: Simplify right side
    211,378.54x = 33,803,394,213.17
  5. Step 5: Solve for x
    x = 33,803,394,213.17/211,378.54
  6. Step 6: Final answer
    x = 159,918.76

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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.