Finding the Fourth Proportional to 319,862.40, 479,966.40 and 132,892.80
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Solution
The fourth proportional to 319,862.40, 479,966.40 and 132,892.80 is: 199,410.99
Step by Step Solution
- Step 1: Write the proportion equation
319,862.40 : 479,966.40 = 132,892.80 : x - Step 2: Convert to fraction form
319,862.40/479,966.40 = 132,892.80/x - Step 3: Cross multiply
319,862.40x = 479,966.40 × 132,892.80 - Step 4: Simplify right side
319,862.40x = 63,784,078,801.92 - Step 5: Solve for x
x = 63,784,078,801.92/319,862.40 - Step 6: Final answer
x = 199,410.99
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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.