Finding the Fourth Proportional to 359,148.63, 538,728.21 and 106,454.70
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Solution
The fourth proportional to 359,148.63, 538,728.21 and 106,454.70 is: 159,683.61
Step by Step Solution
- Step 1: Write the proportion equation
359,148.63 : 538,728.21 = 106,454.70 : x - Step 2: Convert to fraction form
359,148.63/538,728.21 = 106,454.70/x - Step 3: Cross multiply
359,148.63x = 538,728.21 × 106,454.70 - Step 4: Simplify right side
359,148.63x = 57,350,149,977.09 - Step 5: Solve for x
x = 57,350,149,977.09/359,148.63 - Step 6: Final answer
x = 159,683.61
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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.