Finding the Fourth Proportional to 443,835.99, 665,758.84 and 128,295.63
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Solution
The fourth proportional to 443,835.99, 665,758.84 and 128,295.63 is: 192,444.85
Step by Step Solution
- Step 1: Write the proportion equation
443,835.99 : 665,758.84 = 128,295.63 : x - Step 2: Convert to fraction form
443,835.99/665,758.84 = 128,295.63/x - Step 3: Cross multiply
443,835.99x = 665,758.84 × 128,295.63 - Step 4: Simplify right side
443,835.99x = 85,413,949,805.87 - Step 5: Solve for x
x = 85,413,949,805.87/443,835.99 - Step 6: Final answer
x = 192,444.85
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.