Finding the Fourth Proportional to 279,319.57, 385,469.71 and 158,465.95
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Solution
The fourth proportional to 279,319.57, 385,469.71 and 158,465.95 is: 218,687.95
Step by Step Solution
- Step 1: Write the proportion equation
279,319.57 : 385,469.71 = 158,465.95 : x - Step 2: Convert to fraction form
279,319.57/385,469.71 = 158,465.95/x - Step 3: Cross multiply
279,319.57x = 385,469.71 × 158,465.95 - Step 4: Simplify right side
279,319.57x = 61,083,823,791.37 - Step 5: Solve for x
x = 61,083,823,791.37/279,319.57 - Step 6: Final answer
x = 218,687.95
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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.