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Finding the Fourth Proportional to 228,229.85, 314,980.74 and 131,436.88

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Solution

The fourth proportional to 228,229.85, 314,980.74 and 131,436.88 is: 181,396.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,229.85 : 314,980.74 = 131,436.88 : x
  2. Step 2: Convert to fraction form
    228,229.85/314,980.74 = 131,436.88/x
  3. Step 3: Cross multiply
    228,229.85x = 314,980.74 × 131,436.88
  4. Step 4: Simplify right side
    228,229.85x = 41,400,084,753.41
  5. Step 5: Solve for x
    x = 41,400,084,753.41/228,229.85
  6. Step 6: Final answer
    x = 181,396.45

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1.5x scale

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.