Finding the Fourth Proportional to 302,603.40, 453,905.10 and 279,793.80
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Solution
The fourth proportional to 302,603.40, 453,905.10 and 279,793.80 is: 419,690.70
Step by Step Solution
- Step 1: Write the proportion equation
302,603.40 : 453,905.10 = 279,793.80 : x - Step 2: Convert to fraction form
302,603.40/453,905.10 = 279,793.80/x - Step 3: Cross multiply
302,603.40x = 453,905.10 × 279,793.80 - Step 4: Simplify right side
302,603.40x = 126,999,832,768.38 - Step 5: Solve for x
x = 126,999,832,768.38/302,603.40 - Step 6: Final answer
x = 419,690.70
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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.