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Finding the Fourth Proportional to 399,615.27, 599,409.08 and 100,098.43

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Solution

The fourth proportional to 399,615.27, 599,409.08 and 100,098.43 is: 150,144.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,615.27 : 599,409.08 = 100,098.43 : x
  2. Step 2: Convert to fraction form
    399,615.27/599,409.08 = 100,098.43/x
  3. Step 3: Cross multiply
    399,615.27x = 599,409.08 × 100,098.43
  4. Step 4: Simplify right side
    399,615.27x = 59,999,908,085.99
  5. Step 5: Solve for x
    x = 59,999,908,085.99/399,615.27
  6. Step 6: Final answer
    x = 150,144.18

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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.