Finding the Fourth Proportional to 217,119.84, 299,456.88 and 145,476.96
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Solution
The fourth proportional to 217,119.84, 299,456.88 and 145,476.96 is: 200,645.31
Step by Step Solution
- Step 1: Write the proportion equation
217,119.84 : 299,456.88 = 145,476.96 : x - Step 2: Convert to fraction form
217,119.84/299,456.88 = 145,476.96/x - Step 3: Cross multiply
217,119.84x = 299,456.88 × 145,476.96 - Step 4: Simplify right side
217,119.84x = 43,564,076,553.48 - Step 5: Solve for x
x = 43,564,076,553.48/217,119.84 - Step 6: Final answer
x = 200,645.31
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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.