Finding the Fourth Proportional to 268,624.84, 402,911.10 and 81,637.96
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Solution
The fourth proportional to 268,624.84, 402,911.10 and 81,637.96 is: 122,448.99
Step by Step Solution
- Step 1: Write the proportion equation
268,624.84 : 402,911.10 = 81,637.96 : x - Step 2: Convert to fraction form
268,624.84/402,911.10 = 81,637.96/x - Step 3: Cross multiply
268,624.84x = 402,911.10 × 81,637.96 - Step 4: Simplify right side
268,624.84x = 32,892,840,265.36 - Step 5: Solve for x
x = 32,892,840,265.36/268,624.84 - Step 6: Final answer
x = 122,448.99
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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.