Finding the Fourth Proportional to 490,205.70, 735,308.55 and 157,781.70
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Solution
The fourth proportional to 490,205.70, 735,308.55 and 157,781.70 is: 236,672.55
Step by Step Solution
- Step 1: Write the proportion equation
490,205.70 : 735,308.55 = 157,781.70 : x - Step 2: Convert to fraction form
490,205.70/735,308.55 = 157,781.70/x - Step 3: Cross multiply
490,205.70x = 735,308.55 × 157,781.70 - Step 4: Simplify right side
490,205.70x = 116,018,233,043.54 - Step 5: Solve for x
x = 116,018,233,043.54/490,205.70 - Step 6: Final answer
x = 236,672.55
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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.