Finding the Fourth Proportional to 251,935.21, 377,824.95 and 83,420.65
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Solution
The fourth proportional to 251,935.21, 377,824.95 and 83,420.65 is: 125,105.19
Step by Step Solution
- Step 1: Write the proportion equation
251,935.21 : 377,824.95 = 83,420.65 : x - Step 2: Convert to fraction form
251,935.21/377,824.95 = 83,420.65/x - Step 3: Cross multiply
251,935.21x = 377,824.95 × 83,420.65 - Step 4: Simplify right side
251,935.21x = 31,518,402,915.22 - Step 5: Solve for x
x = 31,518,402,915.22/251,935.21 - Step 6: Final answer
x = 125,105.19
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.