Finding the Fourth Proportional to 461,631.09, 637,048.48 and 257,670.21
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Solution
The fourth proportional to 461,631.09, 637,048.48 and 257,670.21 is: 355,583.54
Step by Step Solution
- Step 1: Write the proportion equation
461,631.09 : 637,048.48 = 257,670.21 : x - Step 2: Convert to fraction form
461,631.09/637,048.48 = 257,670.21/x - Step 3: Cross multiply
461,631.09x = 637,048.48 × 257,670.21 - Step 4: Simplify right side
461,631.09x = 164,148,415,621.78 - Step 5: Solve for x
x = 164,148,415,621.78/461,631.09 - Step 6: Final answer
x = 355,583.54
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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.