Finding the Fourth Proportional to 212,209.40, 292,750.80 and 127,178.84
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Solution
The fourth proportional to 212,209.40, 292,750.80 and 127,178.84 is: 175,447.96
Step by Step Solution
- Step 1: Write the proportion equation
212,209.40 : 292,750.80 = 127,178.84 : x - Step 2: Convert to fraction form
212,209.40/292,750.80 = 127,178.84/x - Step 3: Cross multiply
212,209.40x = 292,750.80 × 127,178.84 - Step 4: Simplify right side
212,209.40x = 37,231,707,153.07 - Step 5: Solve for x
x = 37,231,707,153.07/212,209.40 - Step 6: Final answer
x = 175,447.96
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1.5x scale
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.