Finding the Fourth Proportional to 279,874.98, 386,237.88 and 159,036.75
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Solution
The fourth proportional to 279,874.98, 386,237.88 and 159,036.75 is: 219,476.63
Step by Step Solution
- Step 1: Write the proportion equation
279,874.98 : 386,237.88 = 159,036.75 : x - Step 2: Convert to fraction form
279,874.98/386,237.88 = 159,036.75/x - Step 3: Cross multiply
279,874.98x = 386,237.88 × 159,036.75 - Step 4: Simplify right side
279,874.98x = 61,426,017,162.09 - Step 5: Solve for x
x = 61,426,017,162.09/279,874.98 - Step 6: Final answer
x = 219,476.63
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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.