Finding the Fourth Proportional to 386,279.00, 533,066.20 and 214,209.08
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Solution
The fourth proportional to 386,279.00, 533,066.20 and 214,209.08 is: 295,609.18
Step by Step Solution
- Step 1: Write the proportion equation
386,279.00 : 533,066.20 = 214,209.08 : x - Step 2: Convert to fraction form
386,279.00/533,066.20 = 214,209.08/x - Step 3: Cross multiply
386,279.00x = 533,066.20 × 214,209.08 - Step 4: Simplify right side
386,279.00x = 114,187,617,080.24 - Step 5: Solve for x
x = 114,187,617,080.24/386,279.00 - Step 6: Final answer
x = 295,609.18
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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.