Finding the Fourth Proportional to 472,643.20, 709,425.60 and 236,252.80
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Solution
The fourth proportional to 472,643.20, 709,425.60 and 236,252.80 is: 354,609.53
Step by Step Solution
- Step 1: Write the proportion equation
472,643.20 : 709,425.60 = 236,252.80 : x - Step 2: Convert to fraction form
472,643.20/709,425.60 = 236,252.80/x - Step 3: Cross multiply
472,643.20x = 709,425.60 × 236,252.80 - Step 4: Simplify right side
472,643.20x = 167,603,784,391.68 - Step 5: Solve for x
x = 167,603,784,391.68/472,643.20 - Step 6: Final answer
x = 354,609.53
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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.