Finding the Fourth Proportional to 219,286.39, 302,621.12 and 133,216.09
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Solution
The fourth proportional to 219,286.39, 302,621.12 and 133,216.09 is: 183,841.79
Step by Step Solution
- Step 1: Write the proportion equation
219,286.39 : 302,621.12 = 133,216.09 : x - Step 2: Convert to fraction form
219,286.39/302,621.12 = 133,216.09/x - Step 3: Cross multiply
219,286.39x = 302,621.12 × 133,216.09 - Step 4: Simplify right side
219,286.39x = 40,314,001,691.74 - Step 5: Solve for x
x = 40,314,001,691.74/219,286.39 - Step 6: Final answer
x = 183,841.79
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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.