Finding the Fourth Proportional to 285,093.52, 393,430.11 and 154,271.18
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Solution
The fourth proportional to 285,093.52, 393,430.11 and 154,271.18 is: 212,894.79
Step by Step Solution
- Step 1: Write the proportion equation
285,093.52 : 393,430.11 = 154,271.18 : x - Step 2: Convert to fraction form
285,093.52/393,430.11 = 154,271.18/x - Step 3: Cross multiply
285,093.52x = 393,430.11 × 154,271.18 - Step 4: Simplify right side
285,093.52x = 60,694,925,509.24 - Step 5: Solve for x
x = 60,694,925,509.24/285,093.52 - Step 6: Final answer
x = 212,894.79
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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.