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Finding the Fourth Proportional to 228,970.56, 343,487.12 and 79,170.63

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Solution

The fourth proportional to 228,970.56, 343,487.12 and 79,170.63 is: 118,766.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,970.56 : 343,487.12 = 79,170.63 : x
  2. Step 2: Convert to fraction form
    228,970.56/343,487.12 = 79,170.63/x
  3. Step 3: Cross multiply
    228,970.56x = 343,487.12 × 79,170.63
  4. Step 4: Simplify right side
    228,970.56x = 27,194,091,291.43
  5. Step 5: Solve for x
    x = 27,194,091,291.43/228,970.56
  6. Step 6: Final answer
    x = 118,766.76

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1.5x scale

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.