Finding the Fourth Proportional to 211,313.48, 316,853.58 and 86,741.96
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Solution
The fourth proportional to 211,313.48, 316,853.58 and 86,741.96 is: 130,065.06
Step by Step Solution
- Step 1: Write the proportion equation
211,313.48 : 316,853.58 = 86,741.96 : x - Step 2: Convert to fraction form
211,313.48/316,853.58 = 86,741.96/x - Step 3: Cross multiply
211,313.48x = 316,853.58 × 86,741.96 - Step 4: Simplify right side
211,313.48x = 27,484,500,562.22 - Step 5: Solve for x
x = 27,484,500,562.22/211,313.48 - Step 6: Final answer
x = 130,065.06
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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.