Finding the Fourth Proportional to 421,199.36, 581,235.06 and 230,212.92
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Solution
The fourth proportional to 421,199.36, 581,235.06 and 230,212.92 is: 317,682.87
Step by Step Solution
- Step 1: Write the proportion equation
421,199.36 : 581,235.06 = 230,212.92 : x - Step 2: Convert to fraction form
421,199.36/581,235.06 = 230,212.92/x - Step 3: Cross multiply
421,199.36x = 581,235.06 × 230,212.92 - Step 4: Simplify right side
421,199.36x = 133,807,820,368.98 - Step 5: Solve for x
x = 133,807,820,368.98/421,199.36 - Step 6: Final answer
x = 317,682.87
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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.