Finding the Fourth Proportional to 455,527.70, 683,291.55 and 206,209.70
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Solution
The fourth proportional to 455,527.70, 683,291.55 and 206,209.70 is: 309,314.55
Step by Step Solution
- Step 1: Write the proportion equation
455,527.70 : 683,291.55 = 206,209.70 : x - Step 2: Convert to fraction form
455,527.70/683,291.55 = 206,209.70/x - Step 3: Cross multiply
455,527.70x = 683,291.55 × 206,209.70 - Step 4: Simplify right side
455,527.70x = 140,901,345,538.04 - Step 5: Solve for x
x = 140,901,345,538.04/455,527.70 - Step 6: Final answer
x = 309,314.55
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Similar ratio
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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.