Finding the Fourth Proportional to 265,607.63, 398,489.47 and 78,623.99
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Solution
The fourth proportional to 265,607.63, 398,489.47 and 78,623.99 is: 117,959.08
Step by Step Solution
- Step 1: Write the proportion equation
265,607.63 : 398,489.47 = 78,623.99 : x - Step 2: Convert to fraction form
265,607.63/398,489.47 = 78,623.99/x - Step 3: Cross multiply
265,607.63x = 398,489.47 × 78,623.99 - Step 4: Simplify right side
265,607.63x = 31,330,829,915.38 - Step 5: Solve for x
x = 31,330,829,915.38/265,607.63 - Step 6: Final answer
x = 117,959.08
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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.