Finding the Fourth Proportional to 387,073.36, 534,216.36 and 217,318.96
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Solution
The fourth proportional to 387,073.36, 534,216.36 and 217,318.96 is: 299,931.11
Step by Step Solution
- Step 1: Write the proportion equation
387,073.36 : 534,216.36 = 217,318.96 : x - Step 2: Convert to fraction form
387,073.36/534,216.36 = 217,318.96/x - Step 3: Cross multiply
387,073.36x = 534,216.36 × 217,318.96 - Step 4: Simplify right side
387,073.36x = 116,095,343,770.19 - Step 5: Solve for x
x = 116,095,343,770.19/387,073.36 - Step 6: Final answer
x = 299,931.11
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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.