Finding the Fourth Proportional to 478,843.14, 718,108.42 and 158,909.08
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Solution
The fourth proportional to 478,843.14, 718,108.42 and 158,909.08 is: 238,311.75
Step by Step Solution
- Step 1: Write the proportion equation
478,843.14 : 718,108.42 = 158,909.08 : x - Step 2: Convert to fraction form
478,843.14/718,108.42 = 158,909.08/x - Step 3: Cross multiply
478,843.14x = 718,108.42 × 158,909.08 - Step 4: Simplify right side
478,843.14x = 114,113,948,362.45 - Step 5: Solve for x
x = 114,113,948,362.45/478,843.14 - Step 6: Final answer
x = 238,311.75
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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.