Finding the Fourth Proportional to 328,487.09, 492,730.62 and 79,169.09
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Solution
The fourth proportional to 328,487.09, 492,730.62 and 79,169.09 is: 118,753.63
Step by Step Solution
- Step 1: Write the proportion equation
328,487.09 : 492,730.62 = 79,169.09 : x - Step 2: Convert to fraction form
328,487.09/492,730.62 = 79,169.09/x - Step 3: Cross multiply
328,487.09x = 492,730.62 × 79,169.09 - Step 4: Simplify right side
328,487.09x = 39,009,032,336.88 - Step 5: Solve for x
x = 39,009,032,336.88/328,487.09 - Step 6: Final answer
x = 118,753.63
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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.