Finding the Fourth Proportional to 343,315.40, 515,434.80 and 201,306.20
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Solution
The fourth proportional to 343,315.40, 515,434.80 and 201,306.20 is: 302,230.02
Step by Step Solution
- Step 1: Write the proportion equation
343,315.40 : 515,434.80 = 201,306.20 : x - Step 2: Convert to fraction form
343,315.40/515,434.80 = 201,306.20/x - Step 3: Cross multiply
343,315.40x = 515,434.80 × 201,306.20 - Step 4: Simplify right side
343,315.40x = 103,760,220,935.76 - Step 5: Solve for x
x = 103,760,220,935.76/343,315.40 - Step 6: Final answer
x = 302,230.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.