Finding the Fourth Proportional to 623,903.40, 935,855.10 and 203,221.80
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Solution
The fourth proportional to 623,903.40, 935,855.10 and 203,221.80 is: 304,832.70
Step by Step Solution
- Step 1: Write the proportion equation
623,903.40 : 935,855.10 = 203,221.80 : x - Step 2: Convert to fraction form
623,903.40/935,855.10 = 203,221.80/x - Step 3: Cross multiply
623,903.40x = 935,855.10 × 203,221.80 - Step 4: Simplify right side
623,903.40x = 190,186,157,961.18 - Step 5: Solve for x
x = 190,186,157,961.18/623,903.40 - Step 6: Final answer
x = 304,832.70
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Similar ratio
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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.