Finding the Fourth Proportional to 268,335.07, 402,575.19 and 90,842.09
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Solution
The fourth proportional to 268,335.07, 402,575.19 and 90,842.09 is: 136,287.71
Step by Step Solution
- Step 1: Write the proportion equation
268,335.07 : 402,575.19 = 90,842.09 : x - Step 2: Convert to fraction form
268,335.07/402,575.19 = 90,842.09/x - Step 3: Cross multiply
268,335.07x = 402,575.19 × 90,842.09 - Step 4: Simplify right side
268,335.07x = 36,570,771,641.75 - Step 5: Solve for x
x = 36,570,771,641.75/268,335.07 - Step 6: Final answer
x = 136,287.71
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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.