Finding the Fourth Proportional to 261,973.74, 392,631.80 and 112,037.66
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Solution
The fourth proportional to 261,973.74, 392,631.80 and 112,037.66 is: 167,915.86
Step by Step Solution
- Step 1: Write the proportion equation
261,973.74 : 392,631.80 = 112,037.66 : x - Step 2: Convert to fraction form
261,973.74/392,631.80 = 112,037.66/x - Step 3: Cross multiply
261,973.74x = 392,631.80 × 112,037.66 - Step 4: Simplify right side
261,973.74x = 43,989,545,590.24 - Step 5: Solve for x
x = 43,989,545,590.24/261,973.74 - Step 6: Final answer
x = 167,915.86
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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.