Finding the Fourth Proportional to 228,961.13, 315,950.63 and 126,977.02
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Solution
The fourth proportional to 228,961.13, 315,950.63 and 126,977.02 is: 175,219.56
Step by Step Solution
- Step 1: Write the proportion equation
228,961.13 : 315,950.63 = 126,977.02 : x - Step 2: Convert to fraction form
228,961.13/315,950.63 = 126,977.02/x - Step 3: Cross multiply
228,961.13x = 315,950.63 × 126,977.02 - Step 4: Simplify right side
228,961.13x = 40,118,468,039.76 - Step 5: Solve for x
x = 40,118,468,039.76/228,961.13 - Step 6: Final answer
x = 175,219.56
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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.