Finding the Fourth Proportional to 212,281.22, 292,968.80 and 158,472.79
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Solution
The fourth proportional to 212,281.22, 292,968.80 and 158,472.79 is: 218,707.92
Step by Step Solution
- Step 1: Write the proportion equation
212,281.22 : 292,968.80 = 158,472.79 : x - Step 2: Convert to fraction form
212,281.22/292,968.80 = 158,472.79/x - Step 3: Cross multiply
212,281.22x = 292,968.80 × 158,472.79 - Step 4: Simplify right side
212,281.22x = 46,427,583,118.95 - Step 5: Solve for x
x = 46,427,583,118.95/212,281.22 - Step 6: Final answer
x = 218,707.92
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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.