Finding the Fourth Proportional to 239,057.10, 358,419.60 and 105,864.75
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Solution
The fourth proportional to 239,057.10, 358,419.60 and 105,864.75 is: 158,723.59
Step by Step Solution
- Step 1: Write the proportion equation
239,057.10 : 358,419.60 = 105,864.75 : x - Step 2: Convert to fraction form
239,057.10/358,419.60 = 105,864.75/x - Step 3: Cross multiply
239,057.10x = 358,419.60 × 105,864.75 - Step 4: Simplify right side
239,057.10x = 37,944,001,349.10 - Step 5: Solve for x
x = 37,944,001,349.10/239,057.10 - Step 6: Final answer
x = 158,723.59
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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.