Finding the Fourth Proportional to 457,270.16, 685,878.68 and 137,415.12
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Solution
The fourth proportional to 457,270.16, 685,878.68 and 137,415.12 is: 206,114.70
Step by Step Solution
- Step 1: Write the proportion equation
457,270.16 : 685,878.68 = 137,415.12 : x - Step 2: Convert to fraction form
457,270.16/685,878.68 = 137,415.12/x - Step 3: Cross multiply
457,270.16x = 685,878.68 × 137,415.12 - Step 4: Simplify right side
457,270.16x = 94,250,101,117.64 - Step 5: Solve for x
x = 94,250,101,117.64/457,270.16 - Step 6: Final answer
x = 206,114.70
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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.