Finding the Fourth Proportional to 279,237.42, 385,324.02 and 158,340.06
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Solution
The fourth proportional to 279,237.42, 385,324.02 and 158,340.06 is: 218,495.89
Step by Step Solution
- Step 1: Write the proportion equation
279,237.42 : 385,324.02 = 158,340.06 : x - Step 2: Convert to fraction form
279,237.42/385,324.02 = 158,340.06/x - Step 3: Cross multiply
279,237.42x = 385,324.02 × 158,340.06 - Step 4: Simplify right side
279,237.42x = 61,012,228,446.24 - Step 5: Solve for x
x = 61,012,228,446.24/279,237.42 - Step 6: Final answer
x = 218,495.89
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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.