Finding the Fourth Proportional to 229,644.95, 316,920.81 and 127,672.08
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Solution
The fourth proportional to 229,644.95, 316,920.81 and 127,672.08 is: 176,193.47
Step by Step Solution
- Step 1: Write the proportion equation
229,644.95 : 316,920.81 = 127,672.08 : x - Step 2: Convert to fraction form
229,644.95/316,920.81 = 127,672.08/x - Step 3: Cross multiply
229,644.95x = 316,920.81 × 127,672.08 - Step 4: Simplify right side
229,644.95x = 40,461,939,007.98 - Step 5: Solve for x
x = 40,461,939,007.98/229,644.95 - Step 6: Final answer
x = 176,193.47
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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.