Finding the Fourth Proportional to 193,378.78, 266,858.57 and 107,332.74
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Solution
The fourth proportional to 193,378.78, 266,858.57 and 107,332.74 is: 148,116.88
Step by Step Solution
- Step 1: Write the proportion equation
193,378.78 : 266,858.57 = 107,332.74 : x - Step 2: Convert to fraction form
193,378.78/266,858.57 = 107,332.74/x - Step 3: Cross multiply
193,378.78x = 266,858.57 × 107,332.74 - Step 4: Simplify right side
193,378.78x = 28,642,661,510.58 - Step 5: Solve for x
x = 28,642,661,510.58/193,378.78 - Step 6: Final answer
x = 148,116.88
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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.