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Finding the Fourth Proportional to 333,237.98, 459,540.72 and 305,577.28

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Solution

The fourth proportional to 333,237.98, 459,540.72 and 305,577.28 is: 421,396.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,237.98 : 459,540.72 = 305,577.28 : x
  2. Step 2: Convert to fraction form
    333,237.98/459,540.72 = 305,577.28/x
  3. Step 3: Cross multiply
    333,237.98x = 459,540.72 × 305,577.28
  4. Step 4: Simplify right side
    333,237.98x = 140,425,203,266.84
  5. Step 5: Solve for x
    x = 140,425,203,266.84/333,237.98
  6. Step 6: Final answer
    x = 421,396.15

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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.