Finding the Fourth Proportional to 228,586.91, 315,454.67 and 136,801.08
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Solution
The fourth proportional to 228,586.91, 315,454.67 and 136,801.08 is: 188,788.33
Step by Step Solution
- Step 1: Write the proportion equation
228,586.91 : 315,454.67 = 136,801.08 : x - Step 2: Convert to fraction form
228,586.91/315,454.67 = 136,801.08/x - Step 3: Cross multiply
228,586.91x = 315,454.67 × 136,801.08 - Step 4: Simplify right side
228,586.91x = 43,154,539,709.29 - Step 5: Solve for x
x = 43,154,539,709.29/228,586.91 - Step 6: Final answer
x = 188,788.33
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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.