Finding the Fourth Proportional to 194,813.80, 292,220.70 and 142,325.80
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Solution
The fourth proportional to 194,813.80, 292,220.70 and 142,325.80 is: 213,488.70
Step by Step Solution
- Step 1: Write the proportion equation
194,813.80 : 292,220.70 = 142,325.80 : x - Step 2: Convert to fraction form
194,813.80/292,220.70 = 142,325.80/x - Step 3: Cross multiply
194,813.80x = 292,220.70 × 142,325.80 - Step 4: Simplify right side
194,813.80x = 41,590,544,904.06 - Step 5: Solve for x
x = 41,590,544,904.06/194,813.80 - Step 6: Final answer
x = 213,488.70
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1.5x scale
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.