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Finding the Fourth Proportional to 340,847.88, 471,220.38 and 255,817.32

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Solution

The fourth proportional to 340,847.88, 471,220.38 and 255,817.32 is: 353,666.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,847.88 : 471,220.38 = 255,817.32 : x
  2. Step 2: Convert to fraction form
    340,847.88/471,220.38 = 255,817.32/x
  3. Step 3: Cross multiply
    340,847.88x = 471,220.38 × 255,817.32
  4. Step 4: Simplify right side
    340,847.88x = 120,546,334,740.98
  5. Step 5: Solve for x
    x = 120,546,334,740.98/340,847.88
  6. Step 6: Final answer
    x = 353,666.08

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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.