Finding the Fourth Proportional to 270,690.99, 405,768.65 and 128,285.97
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Solution
The fourth proportional to 270,690.99, 405,768.65 and 128,285.97 is: 192,302.02
Step by Step Solution
- Step 1: Write the proportion equation
270,690.99 : 405,768.65 = 128,285.97 : x - Step 2: Convert to fraction form
270,690.99/405,768.65 = 128,285.97/x - Step 3: Cross multiply
270,690.99x = 405,768.65 × 128,285.97 - Step 4: Simplify right side
270,690.99x = 52,054,424,219.41 - Step 5: Solve for x
x = 52,054,424,219.41/270,690.99 - Step 6: Final answer
x = 192,302.02
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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.