Finding the Fourth Proportional to 202,397.74, 279,191.80 and 130,777.76
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Solution
The fourth proportional to 202,397.74, 279,191.80 and 130,777.76 is: 180,397.66
Step by Step Solution
- Step 1: Write the proportion equation
202,397.74 : 279,191.80 = 130,777.76 : x - Step 2: Convert to fraction form
202,397.74/279,191.80 = 130,777.76/x - Step 3: Cross multiply
202,397.74x = 279,191.80 × 130,777.76 - Step 4: Simplify right side
202,397.74x = 36,512,078,214.37 - Step 5: Solve for x
x = 36,512,078,214.37/202,397.74 - Step 6: Final answer
x = 180,397.66
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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.