Finding the Fourth Proportional to 357,148.14, 535,716.36 and 143,910.90
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Solution
The fourth proportional to 357,148.14, 535,716.36 and 143,910.90 is: 215,863.99
Step by Step Solution
- Step 1: Write the proportion equation
357,148.14 : 535,716.36 = 143,910.90 : x - Step 2: Convert to fraction form
357,148.14/535,716.36 = 143,910.90/x - Step 3: Cross multiply
357,148.14x = 535,716.36 × 143,910.90 - Step 4: Simplify right side
357,148.14x = 77,095,423,512.32 - Step 5: Solve for x
x = 77,095,423,512.32/357,148.14 - Step 6: Final answer
x = 215,863.99
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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.