Finding the Fourth Proportional to 228,415.36, 315,211.29 and 126,441.02
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Solution
The fourth proportional to 228,415.36, 315,211.29 and 126,441.02 is: 174,487.55
Step by Step Solution
- Step 1: Write the proportion equation
228,415.36 : 315,211.29 = 126,441.02 : x - Step 2: Convert to fraction form
228,415.36/315,211.29 = 126,441.02/x - Step 3: Cross multiply
228,415.36x = 315,211.29 × 126,441.02 - Step 4: Simplify right side
228,415.36x = 39,855,637,023.12 - Step 5: Solve for x
x = 39,855,637,023.12/228,415.36 - Step 6: Final answer
x = 174,487.55
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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.