Home / 211,961.22-292,789.53-148,509.06

Finding the Fourth Proportional to 211,961.22, 292,789.53 and 148,509.06

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Solution

The fourth proportional to 211,961.22, 292,789.53 and 148,509.06 is: 205,140.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,961.22 : 292,789.53 = 148,509.06 : x
  2. Step 2: Convert to fraction form
    211,961.22/292,789.53 = 148,509.06/x
  3. Step 3: Cross multiply
    211,961.22x = 292,789.53 × 148,509.06
  4. Step 4: Simplify right side
    211,961.22x = 43,481,897,878.14
  5. Step 5: Solve for x
    x = 43,481,897,878.14/211,961.22
  6. Step 6: Final answer
    x = 205,140.82

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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.