Finding the Fourth Proportional to 228,992.20, 316,010.10 and 127,027.06
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Solution
The fourth proportional to 228,992.20, 316,010.10 and 127,027.06 is: 175,297.82
Step by Step Solution
- Step 1: Write the proportion equation
228,992.20 : 316,010.10 = 127,027.06 : x - Step 2: Convert to fraction form
228,992.20/316,010.10 = 127,027.06/x - Step 3: Cross multiply
228,992.20x = 316,010.10 × 127,027.06 - Step 4: Simplify right side
228,992.20x = 40,141,833,933.31 - Step 5: Solve for x
x = 40,141,833,933.31/228,992.20 - Step 6: Final answer
x = 175,297.82
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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.