Finding the Fourth Proportional to 279,362.86, 385,561.38 and 156,868.99
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Solution
The fourth proportional to 279,362.86, 385,561.38 and 156,868.99 is: 216,502.02
Step by Step Solution
- Step 1: Write the proportion equation
279,362.86 : 385,561.38 = 156,868.99 : x - Step 2: Convert to fraction form
279,362.86/385,561.38 = 156,868.99/x - Step 3: Cross multiply
279,362.86x = 385,561.38 × 156,868.99 - Step 4: Simplify right side
279,362.86x = 60,482,623,887.96 - Step 5: Solve for x
x = 60,482,623,887.96/279,362.86 - Step 6: Final answer
x = 216,502.02
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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.