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Finding the Fourth Proportional to 199,320, 298,981.08 and 51,576

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Solution

The fourth proportional to 199,320, 298,981.08 and 51,576 is: 77,364.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,320 : 298,981.08 = 51,576 : x
  2. Step 2: Convert to fraction form
    199,320/298,981.08 = 51,576/x
  3. Step 3: Cross multiply
    199,320x = 298,981.08 × 51,576
  4. Step 4: Simplify right side
    199,320x = 15,420,248,182.08
  5. Step 5: Solve for x
    x = 15,420,248,182.08/199,320
  6. Step 6: Final answer
    x = 77,364.28

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