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Finding the Fourth Proportional to 199,701.20, 299,551.80 and 192,702.80

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Solution

The fourth proportional to 199,701.20, 299,551.80 and 192,702.80 is: 289,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,701.20 : 299,551.80 = 192,702.80 : x
  2. Step 2: Convert to fraction form
    199,701.20/299,551.80 = 192,702.80/x
  3. Step 3: Cross multiply
    199,701.20x = 299,551.80 × 192,702.80
  4. Step 4: Simplify right side
    199,701.20x = 57,724,470,605.04
  5. Step 5: Solve for x
    x = 57,724,470,605.04/199,701.20
  6. Step 6: Final answer
    x = 289,054.20

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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.