Finding the Fourth Proportional to 454,181.40, 681,272.10 and 138,637.80
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Solution
The fourth proportional to 454,181.40, 681,272.10 and 138,637.80 is: 207,956.70
Step by Step Solution
- Step 1: Write the proportion equation
454,181.40 : 681,272.10 = 138,637.80 : x - Step 2: Convert to fraction form
454,181.40/681,272.10 = 138,637.80/x - Step 3: Cross multiply
454,181.40x = 681,272.10 × 138,637.80 - Step 4: Simplify right side
454,181.40x = 94,450,065,145.38 - Step 5: Solve for x
x = 94,450,065,145.38/454,181.40 - Step 6: Final answer
x = 207,956.70
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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.