Finding the Fourth Proportional to 279,509.17, 385,711.18 and 158,648.26
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Solution
The fourth proportional to 279,509.17, 385,711.18 and 158,648.26 is: 218,928.09
Step by Step Solution
- Step 1: Write the proportion equation
279,509.17 : 385,711.18 = 158,648.26 : x - Step 2: Convert to fraction form
279,509.17/385,711.18 = 158,648.26/x - Step 3: Cross multiply
279,509.17x = 385,711.18 × 158,648.26 - Step 4: Simplify right side
279,509.17x = 61,192,407,569.55 - Step 5: Solve for x
x = 61,192,407,569.55/279,509.17 - Step 6: Final answer
x = 218,928.09
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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.