Finding the Fourth Proportional to 457,703.25, 686,555.01 and 142,160.19
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Solution
The fourth proportional to 457,703.25, 686,555.01 and 142,160.19 is: 213,240.33
Step by Step Solution
- Step 1: Write the proportion equation
457,703.25 : 686,555.01 = 142,160.19 : x - Step 2: Convert to fraction form
457,703.25/686,555.01 = 142,160.19/x - Step 3: Cross multiply
457,703.25x = 686,555.01 × 142,160.19 - Step 4: Simplify right side
457,703.25x = 97,600,790,667.05 - Step 5: Solve for x
x = 97,600,790,667.05/457,703.25 - Step 6: Final answer
x = 213,240.33
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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.