Finding the Fourth Proportional to 251,955.90, 347,688.72 and 137,234.99
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Solution
The fourth proportional to 251,955.90, 347,688.72 and 137,234.99 is: 189,378.61
Step by Step Solution
- Step 1: Write the proportion equation
251,955.90 : 347,688.72 = 137,234.99 : x - Step 2: Convert to fraction form
251,955.90/347,688.72 = 137,234.99/x - Step 3: Cross multiply
251,955.90x = 347,688.72 × 137,234.99 - Step 4: Simplify right side
251,955.90x = 47,715,058,881.53 - Step 5: Solve for x
x = 47,715,058,881.53/251,955.90 - Step 6: Final answer
x = 189,378.61
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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.