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Finding the Fourth Proportional to 190,843.20, 286,034.40 and 97,300.80

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Solution

The fourth proportional to 190,843.20, 286,034.40 and 97,300.80 is: 145,833.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,843.20 : 286,034.40 = 97,300.80 : x
  2. Step 2: Convert to fraction form
    190,843.20/286,034.40 = 97,300.80/x
  3. Step 3: Cross multiply
    190,843.20x = 286,034.40 × 97,300.80
  4. Step 4: Simplify right side
    190,843.20x = 27,831,375,947.52
  5. Step 5: Solve for x
    x = 27,831,375,947.52/190,843.20
  6. Step 6: Final answer
    x = 145,833.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.