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Finding the Fourth Proportional to 336,515.40, 504,762.18 and 136,782.18

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Solution

The fourth proportional to 336,515.40, 504,762.18 and 136,782.18 is: 205,168.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,515.40 : 504,762.18 = 136,782.18 : x
  2. Step 2: Convert to fraction form
    336,515.40/504,762.18 = 136,782.18/x
  3. Step 3: Cross multiply
    336,515.40x = 504,762.18 × 136,782.18
  4. Step 4: Simplify right side
    336,515.40x = 69,042,471,361.95
  5. Step 5: Solve for x
    x = 69,042,471,361.95/336,515.40
  6. Step 6: Final answer
    x = 205,168.83

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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.