Finding the Fourth Proportional to 328,242.60, 492,516.99 and 128,511.18
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Solution
The fourth proportional to 328,242.60, 492,516.99 and 128,511.18 is: 192,826.71
Step by Step Solution
- Step 1: Write the proportion equation
328,242.60 : 492,516.99 = 128,511.18 : x - Step 2: Convert to fraction form
328,242.60/492,516.99 = 128,511.18/x - Step 3: Cross multiply
328,242.60x = 492,516.99 × 128,511.18 - Step 4: Simplify right side
328,242.60x = 63,293,939,554.95 - Step 5: Solve for x
x = 63,293,939,554.95/328,242.60 - Step 6: Final answer
x = 192,826.71
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1.5x scale
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.