Finding the Fourth Proportional to 279,231.16, 385,334.76 and 151,903.84
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Solution
The fourth proportional to 279,231.16, 385,334.76 and 151,903.84 is: 209,624.99
Step by Step Solution
- Step 1: Write the proportion equation
279,231.16 : 385,334.76 = 151,903.84 : x - Step 2: Convert to fraction form
279,231.16/385,334.76 = 151,903.84/x - Step 3: Cross multiply
279,231.16x = 385,334.76 × 151,903.84 - Step 4: Simplify right side
279,231.16x = 58,533,829,729.48 - Step 5: Solve for x
x = 58,533,829,729.48/279,231.16 - Step 6: Final answer
x = 209,624.99
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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.