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Finding the Fourth Proportional to 199,271.90, 298,700.22 and 86,921.93

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Solution

The fourth proportional to 199,271.90, 298,700.22 and 86,921.93 is: 130,292.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,271.90 : 298,700.22 = 86,921.93 : x
  2. Step 2: Convert to fraction form
    199,271.90/298,700.22 = 86,921.93/x
  3. Step 3: Cross multiply
    199,271.90x = 298,700.22 × 86,921.93
  4. Step 4: Simplify right side
    199,271.90x = 25,963,599,613.82
  5. Step 5: Solve for x
    x = 25,963,599,613.82/199,271.90
  6. Step 6: Final answer
    x = 130,292.33

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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.