Finding the Fourth Proportional to 421,330.68, 581,319.18 and 251,502.84
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Solution
The fourth proportional to 421,330.68, 581,319.18 and 251,502.84 is: 347,003.98
Step by Step Solution
- Step 1: Write the proportion equation
421,330.68 : 581,319.18 = 251,502.84 : x - Step 2: Convert to fraction form
421,330.68/581,319.18 = 251,502.84/x - Step 3: Cross multiply
421,330.68x = 581,319.18 × 251,502.84 - Step 4: Simplify right side
421,330.68x = 146,203,424,716.47 - Step 5: Solve for x
x = 146,203,424,716.47/421,330.68 - Step 6: Final answer
x = 347,003.98
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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.