Finding the Fourth Proportional to 210,900.60, 291,042.78 and 115,407.26
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Solution
The fourth proportional to 210,900.60, 291,042.78 and 115,407.26 is: 159,261.99
Step by Step Solution
- Step 1: Write the proportion equation
210,900.60 : 291,042.78 = 115,407.26 : x - Step 2: Convert to fraction form
210,900.60/291,042.78 = 115,407.26/x - Step 3: Cross multiply
210,900.60x = 291,042.78 × 115,407.26 - Step 4: Simplify right side
210,900.60x = 33,588,449,782.58 - Step 5: Solve for x
x = 33,588,449,782.58/210,900.60 - Step 6: Final answer
x = 159,261.99
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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.