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Finding the Fourth Proportional to 228,328.60, 342,492.90 and 123,352.60

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Solution

The fourth proportional to 228,328.60, 342,492.90 and 123,352.60 is: 185,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,328.60 : 342,492.90 = 123,352.60 : x
  2. Step 2: Convert to fraction form
    228,328.60/342,492.90 = 123,352.60/x
  3. Step 3: Cross multiply
    228,328.60x = 342,492.90 × 123,352.60
  4. Step 4: Simplify right side
    228,328.60x = 42,247,389,696.54
  5. Step 5: Solve for x
    x = 42,247,389,696.54/228,328.60
  6. Step 6: Final answer
    x = 185,028.90

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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.