Finding the Fourth Proportional to 228,972.36, 316,138.25 and 143,062.14
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Solution
The fourth proportional to 228,972.36, 316,138.25 and 143,062.14 is: 197,523.46
Step by Step Solution
- Step 1: Write the proportion equation
228,972.36 : 316,138.25 = 143,062.14 : x - Step 2: Convert to fraction form
228,972.36/316,138.25 = 143,062.14/x - Step 3: Cross multiply
228,972.36x = 316,138.25 × 143,062.14 - Step 4: Simplify right side
228,972.36x = 45,227,413,865.54 - Step 5: Solve for x
x = 45,227,413,865.54/228,972.36 - Step 6: Final answer
x = 197,523.46
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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.