Finding the Fourth Proportional to 175,784.08, 242,515.11 and 129,953.80
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Solution
The fourth proportional to 175,784.08, 242,515.11 and 129,953.80 is: 179,286.77
Step by Step Solution
- Step 1: Write the proportion equation
175,784.08 : 242,515.11 = 129,953.80 : x - Step 2: Convert to fraction form
175,784.08/242,515.11 = 129,953.80/x - Step 3: Cross multiply
175,784.08x = 242,515.11 × 129,953.80 - Step 4: Simplify right side
175,784.08x = 31,515,760,101.92 - Step 5: Solve for x
x = 31,515,760,101.92/175,784.08 - Step 6: Final answer
x = 179,286.77
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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.