Finding the Fourth Proportional to 397,701.12, 596,645.10 and 131,461.62
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Solution
The fourth proportional to 397,701.12, 596,645.10 and 131,461.62 is: 197,223.31
Step by Step Solution
- Step 1: Write the proportion equation
397,701.12 : 596,645.10 = 131,461.62 : x - Step 2: Convert to fraction form
397,701.12/596,645.10 = 131,461.62/x - Step 3: Cross multiply
397,701.12x = 596,645.10 × 131,461.62 - Step 4: Simplify right side
397,701.12x = 78,435,931,411.06 - Step 5: Solve for x
x = 78,435,931,411.06/397,701.12 - Step 6: Final answer
x = 197,223.31
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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.