Finding the Fourth Proportional to 208,848.39, 288,210.06 and 113,355.09
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Solution
The fourth proportional to 208,848.39, 288,210.06 and 113,355.09 is: 156,429.63
Step by Step Solution
- Step 1: Write the proportion equation
208,848.39 : 288,210.06 = 113,355.09 : x - Step 2: Convert to fraction form
208,848.39/288,210.06 = 113,355.09/x - Step 3: Cross multiply
208,848.39x = 288,210.06 × 113,355.09 - Step 4: Simplify right side
208,848.39x = 32,670,076,218.46 - Step 5: Solve for x
x = 32,670,076,218.46/208,848.39 - Step 6: Final answer
x = 156,429.63
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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.