Finding the Fourth Proportional to 388,658.25, 536,482.62 and 227,565.09
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Solution
The fourth proportional to 388,658.25, 536,482.62 and 227,565.09 is: 314,118.42
Step by Step Solution
- Step 1: Write the proportion equation
388,658.25 : 536,482.62 = 227,565.09 : x - Step 2: Convert to fraction form
388,658.25/536,482.62 = 227,565.09/x - Step 3: Cross multiply
388,658.25x = 536,482.62 × 227,565.09 - Step 4: Simplify right side
388,658.25x = 122,084,715,703.74 - Step 5: Solve for x
x = 122,084,715,703.74/388,658.25 - Step 6: Final answer
x = 314,118.42
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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.