Finding the Fourth Proportional to 190,128.96, 262,406.08 and 109,541.12
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Solution
The fourth proportional to 190,128.96, 262,406.08 and 109,541.12 is: 151,182.94
Step by Step Solution
- Step 1: Write the proportion equation
190,128.96 : 262,406.08 = 109,541.12 : x - Step 2: Convert to fraction form
190,128.96/262,406.08 = 109,541.12/x - Step 3: Cross multiply
190,128.96x = 262,406.08 × 109,541.12 - Step 4: Simplify right side
190,128.96x = 28,744,255,898.01 - Step 5: Solve for x
x = 28,744,255,898.01/190,128.96 - Step 6: Final answer
x = 151,182.94
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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.