Finding the Fourth Proportional to 455,612.18, 683,409.02 and 118,645.38
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Solution
The fourth proportional to 455,612.18, 683,409.02 and 118,645.38 is: 177,965.66
Step by Step Solution
- Step 1: Write the proportion equation
455,612.18 : 683,409.02 = 118,645.38 : x - Step 2: Convert to fraction form
455,612.18/683,409.02 = 118,645.38/x - Step 3: Cross multiply
455,612.18x = 683,409.02 × 118,645.38 - Step 4: Simplify right side
455,612.18x = 81,083,322,280.10 - Step 5: Solve for x
x = 81,083,322,280.10/455,612.18 - Step 6: Final answer
x = 177,965.66
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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.