Finding the Fourth Proportional to 351,140.28, 484,570.14 and 189,991.79
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Solution
The fourth proportional to 351,140.28, 484,570.14 and 189,991.79 is: 262,186.81
Step by Step Solution
- Step 1: Write the proportion equation
351,140.28 : 484,570.14 = 189,991.79 : x - Step 2: Convert to fraction form
351,140.28/484,570.14 = 189,991.79/x - Step 3: Cross multiply
351,140.28x = 484,570.14 × 189,991.79 - Step 4: Simplify right side
351,140.28x = 92,064,348,778.11 - Step 5: Solve for x
x = 92,064,348,778.11/351,140.28 - Step 6: Final answer
x = 262,186.81
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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.