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Finding the Fourth Proportional to 315,199.88, 434,958.08 and 179,266.89

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Solution

The fourth proportional to 315,199.88, 434,958.08 and 179,266.89 is: 247,378.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,199.88 : 434,958.08 = 179,266.89 : x
  2. Step 2: Convert to fraction form
    315,199.88/434,958.08 = 179,266.89/x
  3. Step 3: Cross multiply
    315,199.88x = 434,958.08 × 179,266.89
  4. Step 4: Simplify right side
    315,199.88x = 77,973,582,281.97
  5. Step 5: Solve for x
    x = 77,973,582,281.97/315,199.88
  6. Step 6: Final answer
    x = 247,378.21

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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.