Finding the Fourth Proportional to 307,817.80, 461,726.70 and 189,719.80
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Solution
The fourth proportional to 307,817.80, 461,726.70 and 189,719.80 is: 284,579.70
Step by Step Solution
- Step 1: Write the proportion equation
307,817.80 : 461,726.70 = 189,719.80 : x - Step 2: Convert to fraction form
307,817.80/461,726.70 = 189,719.80/x - Step 3: Cross multiply
307,817.80x = 461,726.70 × 189,719.80 - Step 4: Simplify right side
307,817.80x = 87,598,697,178.66 - Step 5: Solve for x
x = 87,598,697,178.66/307,817.80 - Step 6: Final answer
x = 284,579.70
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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.