Finding the Fourth Proportional to 279,259.19, 385,381.62 and 151,934.88
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Solution
The fourth proportional to 279,259.19, 385,381.62 and 151,934.88 is: 209,672.28
Step by Step Solution
- Step 1: Write the proportion equation
279,259.19 : 385,381.62 = 151,934.88 : x - Step 2: Convert to fraction form
279,259.19/385,381.62 = 151,934.88/x - Step 3: Cross multiply
279,259.19x = 385,381.62 × 151,934.88 - Step 4: Simplify right side
279,259.19x = 58,552,910,188.91 - Step 5: Solve for x
x = 58,552,910,188.91/279,259.19 - Step 6: Final answer
x = 209,672.28
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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.