Finding the Fourth Proportional to 358,866.40, 538,299.60 and 106,127.19
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Solution
The fourth proportional to 358,866.40, 538,299.60 and 106,127.19 is: 159,190.79
Step by Step Solution
- Step 1: Write the proportion equation
358,866.40 : 538,299.60 = 106,127.19 : x - Step 2: Convert to fraction form
358,866.40/538,299.60 = 106,127.19/x - Step 3: Cross multiply
358,866.40x = 538,299.60 × 106,127.19 - Step 4: Simplify right side
358,866.40x = 57,128,224,741.24 - Step 5: Solve for x
x = 57,128,224,741.24/358,866.40 - Step 6: Final answer
x = 159,190.79
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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.