Finding the Fourth Proportional to 201,873.40, 302,810.10 and 138,887.80
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Solution
The fourth proportional to 201,873.40, 302,810.10 and 138,887.80 is: 208,331.70
Step by Step Solution
- Step 1: Write the proportion equation
201,873.40 : 302,810.10 = 138,887.80 : x - Step 2: Convert to fraction form
201,873.40/302,810.10 = 138,887.80/x - Step 3: Cross multiply
201,873.40x = 302,810.10 × 138,887.80 - Step 4: Simplify right side
201,873.40x = 42,056,628,606.78 - Step 5: Solve for x
x = 42,056,628,606.78/201,873.40 - Step 6: Final answer
x = 208,331.70
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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.