Finding the Fourth Proportional to 339,917.24, 509,926.08 and 126,631.28
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Solution
The fourth proportional to 339,917.24, 509,926.08 and 126,631.28 is: 189,965.63
Step by Step Solution
- Step 1: Write the proportion equation
339,917.24 : 509,926.08 = 126,631.28 : x - Step 2: Convert to fraction form
339,917.24/509,926.08 = 126,631.28/x - Step 3: Cross multiply
339,917.24x = 509,926.08 × 126,631.28 - Step 4: Simplify right side
339,917.24x = 64,572,592,215.78 - Step 5: Solve for x
x = 64,572,592,215.78/339,917.24 - Step 6: Final answer
x = 189,965.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.