Finding the Fourth Proportional to 279,619.92, 385,876.08 and 152,295.12
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Solution
The fourth proportional to 279,619.92, 385,876.08 and 152,295.12 is: 210,167.59
Step by Step Solution
- Step 1: Write the proportion equation
279,619.92 : 385,876.08 = 152,295.12 : x - Step 2: Convert to fraction form
279,619.92/385,876.08 = 152,295.12/x - Step 3: Cross multiply
279,619.92x = 385,876.08 × 152,295.12 - Step 4: Simplify right side
279,619.92x = 58,767,043,908.73 - Step 5: Solve for x
x = 58,767,043,908.73/279,619.92 - Step 6: Final answer
x = 210,167.59
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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.