Finding the Fourth Proportional to 358,374.10, 537,186.11 and 133,644.13
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Solution
The fourth proportional to 358,374.10, 537,186.11 and 133,644.13 is: 200,326.34
Step by Step Solution
- Step 1: Write the proportion equation
358,374.10 : 537,186.11 = 133,644.13 : x - Step 2: Convert to fraction form
358,374.10/537,186.11 = 133,644.13/x - Step 3: Cross multiply
358,374.10x = 537,186.11 × 133,644.13 - Step 4: Simplify right side
358,374.10x = 71,791,770,319.03 - Step 5: Solve for x
x = 71,791,770,319.03/358,374.10 - Step 6: Final answer
x = 200,326.34
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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.