Finding the Fourth Proportional to 201,621.40, 302,432.10 and 138,635.80
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Solution
The fourth proportional to 201,621.40, 302,432.10 and 138,635.80 is: 207,953.70
Step by Step Solution
- Step 1: Write the proportion equation
201,621.40 : 302,432.10 = 138,635.80 : x - Step 2: Convert to fraction form
201,621.40/302,432.10 = 138,635.80/x - Step 3: Cross multiply
201,621.40x = 302,432.10 × 138,635.80 - Step 4: Simplify right side
201,621.40x = 41,927,916,129.18 - Step 5: Solve for x
x = 41,927,916,129.18/201,621.40 - Step 6: Final answer
x = 207,953.70
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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.