Finding the Fourth Proportional to 236,564.28, 326,459.52 and 129,136.68
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Solution
The fourth proportional to 236,564.28, 326,459.52 and 129,136.68 is: 178,209.06
Step by Step Solution
- Step 1: Write the proportion equation
236,564.28 : 326,459.52 = 129,136.68 : x - Step 2: Convert to fraction form
236,564.28/326,459.52 = 129,136.68/x - Step 3: Cross multiply
236,564.28x = 326,459.52 × 129,136.68 - Step 4: Simplify right side
236,564.28x = 42,157,898,567.19 - Step 5: Solve for x
x = 42,157,898,567.19/236,564.28 - Step 6: Final answer
x = 178,209.06
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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.