Finding the Fourth Proportional to 285,455.04, 393,927.96 and 158,138.88
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Solution
The fourth proportional to 285,455.04, 393,927.96 and 158,138.88 is: 218,231.66
Step by Step Solution
- Step 1: Write the proportion equation
285,455.04 : 393,927.96 = 158,138.88 : x - Step 2: Convert to fraction form
285,455.04/393,927.96 = 158,138.88/x - Step 3: Cross multiply
285,455.04x = 393,927.96 × 158,138.88 - Step 4: Simplify right side
285,455.04x = 62,295,326,395.08 - Step 5: Solve for x
x = 62,295,326,395.08/285,455.04 - Step 6: Final answer
x = 218,231.66
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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.