Finding the Fourth Proportional to 455,644.40, 683,401.80 and 156,138.80
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Solution
The fourth proportional to 455,644.40, 683,401.80 and 156,138.80 is: 234,185.99
Step by Step Solution
- Step 1: Write the proportion equation
455,644.40 : 683,401.80 = 156,138.80 : x - Step 2: Convert to fraction form
455,644.40/683,401.80 = 156,138.80/x - Step 3: Cross multiply
455,644.40x = 683,401.80 × 156,138.80 - Step 4: Simplify right side
455,644.40x = 106,705,536,969.84 - Step 5: Solve for x
x = 106,705,536,969.84/455,644.40 - Step 6: Final answer
x = 234,185.99
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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.