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Finding the Fourth Proportional to 361,072.50, 498,239.80 and 199,887.18

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Solution

The fourth proportional to 361,072.50, 498,239.80 and 199,887.18 is: 275,822.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,072.50 : 498,239.80 = 199,887.18 : x
  2. Step 2: Convert to fraction form
    361,072.50/498,239.80 = 199,887.18/x
  3. Step 3: Cross multiply
    361,072.50x = 498,239.80 × 199,887.18
  4. Step 4: Simplify right side
    361,072.50x = 99,591,748,585.76
  5. Step 5: Solve for x
    x = 99,591,748,585.76/361,072.50
  6. Step 6: Final answer
    x = 275,822.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.