Finding the Fourth Proportional to 393,343.10, 542,673.51 and 232,117.46
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Solution
The fourth proportional to 393,343.10, 542,673.51 and 232,117.46 is: 320,239.50
Step by Step Solution
- Step 1: Write the proportion equation
393,343.10 : 542,673.51 = 232,117.46 : x - Step 2: Convert to fraction form
393,343.10/542,673.51 = 232,117.46/x - Step 3: Cross multiply
393,343.10x = 542,673.51 × 232,117.46 - Step 4: Simplify right side
393,343.10x = 125,963,996,750.49 - Step 5: Solve for x
x = 125,963,996,750.49/393,343.10 - Step 6: Final answer
x = 320,239.50
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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.