Finding the Fourth Proportional to 639,960.77, 959,996.28 and 166,646.99
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Solution
The fourth proportional to 639,960.77, 959,996.28 and 166,646.99 is: 249,984.84
Step by Step Solution
- Step 1: Write the proportion equation
639,960.77 : 959,996.28 = 166,646.99 : x - Step 2: Convert to fraction form
639,960.77/959,996.28 = 166,646.99/x - Step 3: Cross multiply
639,960.77x = 959,996.28 × 166,646.99 - Step 4: Simplify right side
639,960.77x = 159,980,490,473.20 - Step 5: Solve for x
x = 159,980,490,473.20/639,960.77 - Step 6: Final answer
x = 249,984.84
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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.