Finding the Fourth Proportional to 393,106.28, 542,501.70 and 214,258.28
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Solution
The fourth proportional to 393,106.28, 542,501.70 and 214,258.28 is: 295,684.62
Step by Step Solution
- Step 1: Write the proportion equation
393,106.28 : 542,501.70 = 214,258.28 : x - Step 2: Convert to fraction form
393,106.28/542,501.70 = 214,258.28/x - Step 3: Cross multiply
393,106.28x = 542,501.70 × 214,258.28 - Step 4: Simplify right side
393,106.28x = 116,235,481,139.08 - Step 5: Solve for x
x = 116,235,481,139.08/393,106.28 - Step 6: Final answer
x = 295,684.62
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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.