Finding the Fourth Proportional to 286,880.96, 395,909.76 and 159,553.84
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Solution
The fourth proportional to 286,880.96, 395,909.76 and 159,553.84 is: 220,192.11
Step by Step Solution
- Step 1: Write the proportion equation
286,880.96 : 395,909.76 = 159,553.84 : x - Step 2: Convert to fraction form
286,880.96/395,909.76 = 159,553.84/x - Step 3: Cross multiply
286,880.96x = 395,909.76 × 159,553.84 - Step 4: Simplify right side
286,880.96x = 63,168,922,501.48 - Step 5: Solve for x
x = 63,168,922,501.48/286,880.96 - Step 6: Final answer
x = 220,192.11
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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.