Finding the Fourth Proportional to 311,097.24, 429,346.44 and 190,318.95
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Solution
The fourth proportional to 311,097.24, 429,346.44 and 190,318.95 is: 262,659.88
Step by Step Solution
- Step 1: Write the proportion equation
311,097.24 : 429,346.44 = 190,318.95 : x - Step 2: Convert to fraction form
311,097.24/429,346.44 = 190,318.95/x - Step 3: Cross multiply
311,097.24x = 429,346.44 × 190,318.95 - Step 4: Simplify right side
311,097.24x = 81,712,763,647.04 - Step 5: Solve for x
x = 81,712,763,647.04/311,097.24 - Step 6: Final answer
x = 262,659.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.