Finding the Fourth Proportional to 257,841.73, 355,816.02 and 143,113.65
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Solution
The fourth proportional to 257,841.73, 355,816.02 and 143,113.65 is: 197,493.75
Step by Step Solution
- Step 1: Write the proportion equation
257,841.73 : 355,816.02 = 143,113.65 : x - Step 2: Convert to fraction form
257,841.73/355,816.02 = 143,113.65/x - Step 3: Cross multiply
257,841.73x = 355,816.02 × 143,113.65 - Step 4: Simplify right side
257,841.73x = 50,922,129,350.67 - Step 5: Solve for x
x = 50,922,129,350.67/257,841.73 - Step 6: Final answer
x = 197,493.75
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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.