Finding the Fourth Proportional to 903.26, 1,354.93 and 286.99
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Solution
The fourth proportional to 903.26, 1,354.93 and 286.99 is: 430.49
Step by Step Solution
- Step 1: Write the proportion equation
903.26 : 1,354.93 = 286.99 : x - Step 2: Convert to fraction form
903.26/1,354.93 = 286.99/x - Step 3: Cross multiply
903.26x = 1,354.93 × 286.99 - Step 4: Simplify right side
903.26x = 388,847.26 - Step 5: Solve for x
x = 388,847.26/903.26 - Step 6: Final answer
x = 430.49
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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.