Finding the Fourth Proportional to 639,740.84, 959,612.49 and 166,425.44
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Solution
The fourth proportional to 639,740.84, 959,612.49 and 166,425.44 is: 249,638.47
Step by Step Solution
- Step 1: Write the proportion equation
639,740.84 : 959,612.49 = 166,425.44 : x - Step 2: Convert to fraction form
639,740.84/959,612.49 = 166,425.44/x - Step 3: Cross multiply
639,740.84x = 959,612.49 × 166,425.44 - Step 4: Simplify right side
639,740.84x = 159,703,926,079.68 - Step 5: Solve for x
x = 159,703,926,079.68/639,740.84 - Step 6: Final answer
x = 249,638.47
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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.