Home / 212,091.95-292,589.36-187,917.40

Finding the Fourth Proportional to 212,091.95, 292,589.36 and 187,917.40

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Solution

The fourth proportional to 212,091.95, 292,589.36 and 187,917.40 is: 259,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,091.95 : 292,589.36 = 187,917.40 : x
  2. Step 2: Convert to fraction form
    212,091.95/292,589.36 = 187,917.40/x
  3. Step 3: Cross multiply
    212,091.95x = 292,589.36 × 187,917.40
  4. Step 4: Simplify right side
    212,091.95x = 54,982,632,986.74
  5. Step 5: Solve for x
    x = 54,982,632,986.74/212,091.95
  6. Step 6: Final answer
    x = 259,239.60

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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.