Finding the Fourth Proportional to 286,629.49, 395,545.84 and 159,302.35
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Solution
The fourth proportional to 286,629.49, 395,545.84 and 159,302.35 is: 219,835.66
Step by Step Solution
- Step 1: Write the proportion equation
286,629.49 : 395,545.84 = 159,302.35 : x - Step 2: Convert to fraction form
286,629.49/395,545.84 = 159,302.35/x - Step 3: Cross multiply
286,629.49x = 395,545.84 × 159,302.35 - Step 4: Simplify right side
286,629.49x = 63,011,381,844.72 - Step 5: Solve for x
x = 63,011,381,844.72/286,629.49 - Step 6: Final answer
x = 219,835.66
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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.