Finding the Fourth Proportional to 268,209.15, 370,135.14 and 147,358.26
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Solution
The fourth proportional to 268,209.15, 370,135.14 and 147,358.26 is: 203,357.98
Step by Step Solution
- Step 1: Write the proportion equation
268,209.15 : 370,135.14 = 147,358.26 : x - Step 2: Convert to fraction form
268,209.15/370,135.14 = 147,358.26/x - Step 3: Cross multiply
268,209.15x = 370,135.14 × 147,358.26 - Step 4: Simplify right side
268,209.15x = 54,542,470,195.26 - Step 5: Solve for x
x = 54,542,470,195.26/268,209.15 - Step 6: Final answer
x = 203,357.98
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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.