Finding the Fourth Proportional to 455,631.80, 683,447.70 and 202,911.80
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Solution
The fourth proportional to 455,631.80, 683,447.70 and 202,911.80 is: 304,367.70
Step by Step Solution
- Step 1: Write the proportion equation
455,631.80 : 683,447.70 = 202,911.80 : x - Step 2: Convert to fraction form
455,631.80/683,447.70 = 202,911.80/x - Step 3: Cross multiply
455,631.80x = 683,447.70 × 202,911.80 - Step 4: Simplify right side
455,631.80x = 138,679,603,012.86 - Step 5: Solve for x
x = 138,679,603,012.86/455,631.80 - Step 6: Final answer
x = 304,367.70
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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.