Finding the Fourth Proportional to 336,128.13, 504,193.20 and 86,810.13
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Solution
The fourth proportional to 336,128.13, 504,193.20 and 86,810.13 is: 130,215.45
Step by Step Solution
- Step 1: Write the proportion equation
336,128.13 : 504,193.20 = 86,810.13 : x - Step 2: Convert to fraction form
336,128.13/504,193.20 = 86,810.13/x - Step 3: Cross multiply
336,128.13x = 504,193.20 × 86,810.13 - Step 4: Simplify right side
336,128.13x = 43,769,077,237.12 - Step 5: Solve for x
x = 43,769,077,237.12/336,128.13 - Step 6: Final answer
x = 130,215.45
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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.