Finding the Fourth Proportional to 286,687.68, 395,601.36 and 159,355.68
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Solution
The fourth proportional to 286,687.68, 395,601.36 and 159,355.68 is: 219,895.48
Step by Step Solution
- Step 1: Write the proportion equation
286,687.68 : 395,601.36 = 159,355.68 : x - Step 2: Convert to fraction form
286,687.68/395,601.36 = 159,355.68/x - Step 3: Cross multiply
286,687.68x = 395,601.36 × 159,355.68 - Step 4: Simplify right side
286,687.68x = 63,041,323,731.72 - Step 5: Solve for x
x = 63,041,323,731.72/286,687.68 - Step 6: Final answer
x = 219,895.48
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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.