Finding the Fourth Proportional to 256,811.80, 385,217.70 and 194,603.80
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Solution
The fourth proportional to 256,811.80, 385,217.70 and 194,603.80 is: 291,905.70
Step by Step Solution
- Step 1: Write the proportion equation
256,811.80 : 385,217.70 = 194,603.80 : x - Step 2: Convert to fraction form
256,811.80/385,217.70 = 194,603.80/x - Step 3: Cross multiply
256,811.80x = 385,217.70 × 194,603.80 - Step 4: Simplify right side
256,811.80x = 74,964,828,247.26 - Step 5: Solve for x
x = 74,964,828,247.26/256,811.80 - Step 6: Final answer
x = 291,905.70
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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.