Finding the Fourth Proportional to 215,830.05, 297,767.36 and 125,136.07
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Solution
The fourth proportional to 215,830.05, 297,767.36 and 125,136.07 is: 172,642.49
Step by Step Solution
- Step 1: Write the proportion equation
215,830.05 : 297,767.36 = 125,136.07 : x - Step 2: Convert to fraction form
215,830.05/297,767.36 = 125,136.07/x - Step 3: Cross multiply
215,830.05x = 297,767.36 × 125,136.07 - Step 4: Simplify right side
215,830.05x = 37,261,437,204.68 - Step 5: Solve for x
x = 37,261,437,204.68/215,830.05 - Step 6: Final answer
x = 172,642.49
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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.