Finding the Fourth Proportional to 208,970.68, 288,370.68 and 118,331.60
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Solution
The fourth proportional to 208,970.68, 288,370.68 and 118,331.60 is: 163,292.59
Step by Step Solution
- Step 1: Write the proportion equation
208,970.68 : 288,370.68 = 118,331.60 : x - Step 2: Convert to fraction form
208,970.68/288,370.68 = 118,331.60/x - Step 3: Cross multiply
208,970.68x = 288,370.68 × 118,331.60 - Step 4: Simplify right side
208,970.68x = 34,123,363,957.49 - Step 5: Solve for x
x = 34,123,363,957.49/208,970.68 - Step 6: Final answer
x = 163,292.59
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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.