Finding the Fourth Proportional to 538,258.09, 807,383.08 and 138,864.91
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Solution
The fourth proportional to 538,258.09, 807,383.08 and 138,864.91 is: 208,296.32
Step by Step Solution
- Step 1: Write the proportion equation
538,258.09 : 807,383.08 = 138,864.91 : x - Step 2: Convert to fraction form
538,258.09/807,383.08 = 138,864.91/x - Step 3: Cross multiply
538,258.09x = 807,383.08 × 138,864.91 - Step 4: Simplify right side
538,258.09x = 112,117,178,739.72 - Step 5: Solve for x
x = 112,117,178,739.72/538,258.09 - Step 6: Final answer
x = 208,296.32
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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.