Finding the Fourth Proportional to 201,851.11, 302,778.98 and 86,430.06
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Solution
The fourth proportional to 201,851.11, 302,778.98 and 86,430.06 is: 129,646.08
Step by Step Solution
- Step 1: Write the proportion equation
201,851.11 : 302,778.98 = 86,430.06 : x - Step 2: Convert to fraction form
201,851.11/302,778.98 = 86,430.06/x - Step 3: Cross multiply
201,851.11x = 302,778.98 × 86,430.06 - Step 4: Simplify right side
201,851.11x = 26,169,205,300.10 - Step 5: Solve for x
x = 26,169,205,300.10/201,851.11 - Step 6: Final answer
x = 129,646.08
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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.