Home / 211,865.80-292,376.91-115,071.54

Finding the Fourth Proportional to 211,865.80, 292,376.91 and 115,071.54

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Solution

The fourth proportional to 211,865.80, 292,376.91 and 115,071.54 is: 158,799.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,865.80 : 292,376.91 = 115,071.54 : x
  2. Step 2: Convert to fraction form
    211,865.80/292,376.91 = 115,071.54/x
  3. Step 3: Cross multiply
    211,865.80x = 292,376.91 × 115,071.54
  4. Step 4: Simplify right side
    211,865.80x = 33,644,261,294.14
  5. Step 5: Solve for x
    x = 33,644,261,294.14/211,865.80
  6. Step 6: Final answer
    x = 158,799.87

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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.