Finding the Fourth Proportional to 370,207.10, 555,310.65 and 212,305.70
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Solution
The fourth proportional to 370,207.10, 555,310.65 and 212,305.70 is: 318,458.55
Step by Step Solution
- Step 1: Write the proportion equation
370,207.10 : 555,310.65 = 212,305.70 : x - Step 2: Convert to fraction form
370,207.10/555,310.65 = 212,305.70/x - Step 3: Cross multiply
370,207.10x = 555,310.65 × 212,305.70 - Step 4: Simplify right side
370,207.10x = 117,895,616,265.71 - Step 5: Solve for x
x = 117,895,616,265.71/370,207.10 - Step 6: Final answer
x = 318,458.55
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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.