Finding the Fourth Proportional to 217,313.08, 299,762.58 and 159,138.88
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Solution
The fourth proportional to 217,313.08, 299,762.58 and 159,138.88 is: 219,516.84
Step by Step Solution
- Step 1: Write the proportion equation
217,313.08 : 299,762.58 = 159,138.88 : x - Step 2: Convert to fraction form
217,313.08/299,762.58 = 159,138.88/x - Step 3: Cross multiply
217,313.08x = 299,762.58 × 159,138.88 - Step 4: Simplify right side
217,313.08x = 47,703,881,247.11 - Step 5: Solve for x
x = 47,703,881,247.11/217,313.08 - Step 6: Final answer
x = 219,516.84
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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.