Finding the Fourth Proportional to 378,259.88, 521,998.63 and 208,497.65
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Solution
The fourth proportional to 378,259.88, 521,998.63 and 208,497.65 is: 287,726.75
Step by Step Solution
- Step 1: Write the proportion equation
378,259.88 : 521,998.63 = 208,497.65 : x - Step 2: Convert to fraction form
378,259.88/521,998.63 = 208,497.65/x - Step 3: Cross multiply
378,259.88x = 521,998.63 × 208,497.65 - Step 4: Simplify right side
378,259.88x = 108,835,484,526.98 - Step 5: Solve for x
x = 108,835,484,526.98/378,259.88 - Step 6: Final answer
x = 287,726.75
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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.