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Finding the Fourth Proportional to 228,839.60, 343,291.80 and 71,051.60

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Solution

The fourth proportional to 228,839.60, 343,291.80 and 71,051.60 is: 106,587.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,839.60 : 343,291.80 = 71,051.60 : x
  2. Step 2: Convert to fraction form
    228,839.60/343,291.80 = 71,051.60/x
  3. Step 3: Cross multiply
    228,839.60x = 343,291.80 × 71,051.60
  4. Step 4: Simplify right side
    228,839.60x = 24,391,431,656.88
  5. Step 5: Solve for x
    x = 24,391,431,656.88/228,839.60
  6. Step 6: Final answer
    x = 106,587.46

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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.