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Finding the Fourth Proportional to 199,424.89, 298,887.87 and 99,612.95

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Solution

The fourth proportional to 199,424.89, 298,887.87 and 99,612.95 is: 149,294.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,424.89 : 298,887.87 = 99,612.95 : x
  2. Step 2: Convert to fraction form
    199,424.89/298,887.87 = 99,612.95/x
  3. Step 3: Cross multiply
    199,424.89x = 298,887.87 × 99,612.95
  4. Step 4: Simplify right side
    199,424.89x = 29,773,100,955.48
  5. Step 5: Solve for x
    x = 29,773,100,955.48/199,424.89
  6. Step 6: Final answer
    x = 149,294.81

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1.5x scale

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.