Finding the Fourth Proportional to 371,853.18, 513,157.68 and 202,088.52
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Solution
The fourth proportional to 371,853.18, 513,157.68 and 202,088.52 is: 278,882.32
Step by Step Solution
- Step 1: Write the proportion equation
371,853.18 : 513,157.68 = 202,088.52 : x - Step 2: Convert to fraction form
371,853.18/513,157.68 = 202,088.52/x - Step 3: Cross multiply
371,853.18x = 513,157.68 × 202,088.52 - Step 4: Simplify right side
371,853.18x = 103,703,276,077.83 - Step 5: Solve for x
x = 103,703,276,077.83/371,853.18 - Step 6: Final answer
x = 278,882.32
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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.