Finding the Fourth Proportional to 285,265.24, 393,638.70 and 170,521.12
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Solution
The fourth proportional to 285,265.24, 393,638.70 and 170,521.12 is: 235,302.81
Step by Step Solution
- Step 1: Write the proportion equation
285,265.24 : 393,638.70 = 170,521.12 : x - Step 2: Convert to fraction form
285,265.24/393,638.70 = 170,521.12/x - Step 3: Cross multiply
285,265.24x = 393,638.70 × 170,521.12 - Step 4: Simplify right side
285,265.24x = 67,123,711,999.34 - Step 5: Solve for x
x = 67,123,711,999.34/285,265.24 - Step 6: Final answer
x = 235,302.81
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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.