Finding the Fourth Proportional to 258,909.12, 357,497.28 and 202,481.28
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Solution
The fourth proportional to 258,909.12, 357,497.28 and 202,481.28 is: 279,582.68
Step by Step Solution
- Step 1: Write the proportion equation
258,909.12 : 357,497.28 = 202,481.28 : x - Step 2: Convert to fraction form
258,909.12/357,497.28 = 202,481.28/x - Step 3: Cross multiply
258,909.12x = 357,497.28 × 202,481.28 - Step 4: Simplify right side
258,909.12x = 72,386,506,850.92 - Step 5: Solve for x
x = 72,386,506,850.92/258,909.12 - Step 6: Final answer
x = 279,582.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.