Finding the Fourth Proportional to 279,696.51, 385,992.99 and 152,379.09
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Solution
The fourth proportional to 279,696.51, 385,992.99 and 152,379.09 is: 210,289.58
Step by Step Solution
- Step 1: Write the proportion equation
279,696.51 : 385,992.99 = 152,379.09 : x - Step 2: Convert to fraction form
279,696.51/385,992.99 = 152,379.09/x - Step 3: Cross multiply
279,696.51x = 385,992.99 × 152,379.09 - Step 4: Simplify right side
279,696.51x = 58,817,260,562.58 - Step 5: Solve for x
x = 58,817,260,562.58/279,696.51 - Step 6: Final answer
x = 210,289.58
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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.