Finding the Fourth Proportional to 421,068.64, 581,115.36 and 230,110.96
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Solution
The fourth proportional to 421,068.64, 581,115.36 and 230,110.96 is: 317,575.33
Step by Step Solution
- Step 1: Write the proportion equation
421,068.64 : 581,115.36 = 230,110.96 : x - Step 2: Convert to fraction form
421,068.64/581,115.36 = 230,110.96/x - Step 3: Cross multiply
421,068.64x = 581,115.36 × 230,110.96 - Step 4: Simplify right side
421,068.64x = 133,721,013,360.35 - Step 5: Solve for x
x = 133,721,013,360.35/421,068.64 - Step 6: Final answer
x = 317,575.33
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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.