Finding the Fourth Proportional to 151,383.08, 208,925.07 and 83,407.03
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Solution
The fourth proportional to 151,383.08, 208,925.07 and 83,407.03 is: 115,110.75
Step by Step Solution
- Step 1: Write the proportion equation
151,383.08 : 208,925.07 = 83,407.03 : x - Step 2: Convert to fraction form
151,383.08/208,925.07 = 83,407.03/x - Step 3: Cross multiply
151,383.08x = 208,925.07 × 83,407.03 - Step 4: Simplify right side
151,383.08x = 17,425,819,581.24 - Step 5: Solve for x
x = 17,425,819,581.24/151,383.08 - Step 6: Final answer
x = 115,110.75
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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.