Finding the Fourth Proportional to 455,865.80, 683,798.70 and 203,145.80
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Solution
The fourth proportional to 455,865.80, 683,798.70 and 203,145.80 is: 304,718.70
Step by Step Solution
- Step 1: Write the proportion equation
455,865.80 : 683,798.70 = 203,145.80 : x - Step 2: Convert to fraction form
455,865.80/683,798.70 = 203,145.80/x - Step 3: Cross multiply
455,865.80x = 683,798.70 × 203,145.80 - Step 4: Simplify right side
455,865.80x = 138,910,833,950.46 - Step 5: Solve for x
x = 138,910,833,950.46/455,865.80 - Step 6: Final answer
x = 304,718.70
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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.