Finding the Fourth Proportional to 219,296.99, 302,621.28 and 137,669.13
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Solution
The fourth proportional to 219,296.99, 302,621.28 and 137,669.13 is: 189,978.03
Step by Step Solution
- Step 1: Write the proportion equation
219,296.99 : 302,621.28 = 137,669.13 : x - Step 2: Convert to fraction form
219,296.99/302,621.28 = 137,669.13/x - Step 3: Cross multiply
219,296.99x = 302,621.28 × 137,669.13 - Step 4: Simplify right side
219,296.99x = 41,661,608,337.09 - Step 5: Solve for x
x = 41,661,608,337.09/219,296.99 - Step 6: Final answer
x = 189,978.03
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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.