Finding the Fourth Proportional to 228,363.35, 315,134.90 and 126,392.99
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Solution
The fourth proportional to 228,363.35, 315,134.90 and 126,392.99 is: 174,418.72
Step by Step Solution
- Step 1: Write the proportion equation
228,363.35 : 315,134.90 = 126,392.99 : x - Step 2: Convert to fraction form
228,363.35/315,134.90 = 126,392.99/x - Step 3: Cross multiply
228,363.35x = 315,134.90 × 126,392.99 - Step 4: Simplify right side
228,363.35x = 39,830,842,264.35 - Step 5: Solve for x
x = 39,830,842,264.35/228,363.35 - Step 6: Final answer
x = 174,418.72
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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.