Finding the Fourth Proportional to 416,262.87, 574,442.76 and 225,276.21
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Solution
The fourth proportional to 416,262.87, 574,442.76 and 225,276.21 is: 310,881.17
Step by Step Solution
- Step 1: Write the proportion equation
416,262.87 : 574,442.76 = 225,276.21 : x - Step 2: Convert to fraction form
416,262.87/574,442.76 = 225,276.21/x - Step 3: Cross multiply
416,262.87x = 574,442.76 × 225,276.21 - Step 4: Simplify right side
416,262.87x = 129,408,287,834.74 - Step 5: Solve for x
x = 129,408,287,834.74/416,262.87 - Step 6: Final answer
x = 310,881.17
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.