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Finding the Fourth Proportional to 199,060.40, 298,590.60 and 189,218.90

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Solution

The fourth proportional to 199,060.40, 298,590.60 and 189,218.90 is: 283,828.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,060.40 : 298,590.60 = 189,218.90 : x
  2. Step 2: Convert to fraction form
    199,060.40/298,590.60 = 189,218.90/x
  3. Step 3: Cross multiply
    199,060.40x = 298,590.60 × 189,218.90
  4. Step 4: Simplify right side
    199,060.40x = 56,498,984,882.34
  5. Step 5: Solve for x
    x = 56,498,984,882.34/199,060.40
  6. Step 6: Final answer
    x = 283,828.35

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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.