Finding the Fourth Proportional to 639,753.36, 959,631.26 and 166,437.96
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Solution
The fourth proportional to 639,753.36, 959,631.26 and 166,437.96 is: 249,657.26
Step by Step Solution
- Step 1: Write the proportion equation
639,753.36 : 959,631.26 = 166,437.96 : x - Step 2: Convert to fraction form
639,753.36/959,631.26 = 166,437.96/x - Step 3: Cross multiply
639,753.36x = 959,631.26 × 166,437.96 - Step 4: Simplify right side
639,753.36x = 159,719,069,266.63 - Step 5: Solve for x
x = 159,719,069,266.63/639,753.36 - Step 6: Final answer
x = 249,657.26
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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.