Finding the Fourth Proportional to 212,024.55, 292,644.60 and 121,432.95
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Solution
The fourth proportional to 212,024.55, 292,644.60 and 121,432.95 is: 167,606.52
Step by Step Solution
- Step 1: Write the proportion equation
212,024.55 : 292,644.60 = 121,432.95 : x - Step 2: Convert to fraction form
212,024.55/292,644.60 = 121,432.95/x - Step 3: Cross multiply
212,024.55x = 292,644.60 × 121,432.95 - Step 4: Simplify right side
212,024.55x = 35,536,697,079.57 - Step 5: Solve for x
x = 35,536,697,079.57/212,024.55 - Step 6: Final answer
x = 167,606.52
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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.