Finding the Fourth Proportional to 358,880.20, 539,486.70 and 307,558.60
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Solution
The fourth proportional to 358,880.20, 539,486.70 and 307,558.60 is: 462,337.50
Step by Step Solution
- Step 1: Write the proportion equation
358,880.20 : 539,486.70 = 307,558.60 : x - Step 2: Convert to fraction form
358,880.20/539,486.70 = 307,558.60/x - Step 3: Cross multiply
358,880.20x = 539,486.70 × 307,558.60 - Step 4: Simplify right side
358,880.20x = 165,923,774,170.62 - Step 5: Solve for x
x = 165,923,774,170.62/358,880.20 - Step 6: Final answer
x = 462,337.50
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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.