Finding the Fourth Proportional to 284,216.76, 392,214.42 and 156,889.08
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Solution
The fourth proportional to 284,216.76, 392,214.42 and 156,889.08 is: 216,504.33
Step by Step Solution
- Step 1: Write the proportion equation
284,216.76 : 392,214.42 = 156,889.08 : x - Step 2: Convert to fraction form
284,216.76/392,214.42 = 156,889.08/x - Step 3: Cross multiply
284,216.76x = 392,214.42 × 156,889.08 - Step 4: Simplify right side
284,216.76x = 61,534,159,516.53 - Step 5: Solve for x
x = 61,534,159,516.53/284,216.76 - Step 6: Final answer
x = 216,504.33
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1.5x scale
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.