Finding the Fourth Proportional to 279,364.80, 385,511.49 and 152,040.09
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Solution
The fourth proportional to 279,364.80, 385,511.49 and 152,040.09 is: 209,808.83
Step by Step Solution
- Step 1: Write the proportion equation
279,364.80 : 385,511.49 = 152,040.09 : x - Step 2: Convert to fraction form
279,364.80/385,511.49 = 152,040.09/x - Step 3: Cross multiply
279,364.80x = 385,511.49 × 152,040.09 - Step 4: Simplify right side
279,364.80x = 58,613,201,635.63 - Step 5: Solve for x
x = 58,613,201,635.63/279,364.80 - Step 6: Final answer
x = 209,808.83
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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.