Finding the Fourth Proportional to 352,051.80, 528,077.70 and 212,083.80
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Solution
The fourth proportional to 352,051.80, 528,077.70 and 212,083.80 is: 318,125.70
Step by Step Solution
- Step 1: Write the proportion equation
352,051.80 : 528,077.70 = 212,083.80 : x - Step 2: Convert to fraction form
352,051.80/528,077.70 = 212,083.80/x - Step 3: Cross multiply
352,051.80x = 528,077.70 × 212,083.80 - Step 4: Simplify right side
352,051.80x = 111,996,725,311.26 - Step 5: Solve for x
x = 111,996,725,311.26/352,051.80 - Step 6: Final answer
x = 318,125.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.