Finding the Fourth Proportional to 282,381.99, 389,684.34 and 153,317.63
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Solution
The fourth proportional to 282,381.99, 389,684.34 and 153,317.63 is: 211,576.80
Step by Step Solution
- Step 1: Write the proportion equation
282,381.99 : 389,684.34 = 153,317.63 : x - Step 2: Convert to fraction form
282,381.99/389,684.34 = 153,317.63/x - Step 3: Cross multiply
282,381.99x = 389,684.34 × 153,317.63 - Step 4: Simplify right side
282,381.99x = 59,745,477,508.49 - Step 5: Solve for x
x = 59,745,477,508.49/282,381.99 - Step 6: Final answer
x = 211,576.80
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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.