Finding the Fourth Proportional to 328,083.99, 492,125.93 and 78,765.99
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Solution
The fourth proportional to 328,083.99, 492,125.93 and 78,765.99 is: 118,148.97
Step by Step Solution
- Step 1: Write the proportion equation
328,083.99 : 492,125.93 = 78,765.99 : x - Step 2: Convert to fraction form
328,083.99/492,125.93 = 78,765.99/x - Step 3: Cross multiply
328,083.99x = 492,125.93 × 78,765.99 - Step 4: Simplify right side
328,083.99x = 38,762,784,137.19 - Step 5: Solve for x
x = 38,762,784,137.19/328,083.99 - Step 6: Final answer
x = 118,148.97
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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.