Finding the Fourth Proportional to 236,688.47, 326,631.27 and 129,258.50
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Solution
The fourth proportional to 236,688.47, 326,631.27 and 129,258.50 is: 178,377.37
Step by Step Solution
- Step 1: Write the proportion equation
236,688.47 : 326,631.27 = 129,258.50 : x - Step 2: Convert to fraction form
236,688.47/326,631.27 = 129,258.50/x - Step 3: Cross multiply
236,688.47x = 326,631.27 × 129,258.50 - Step 4: Simplify right side
236,688.47x = 42,219,866,380.14 - Step 5: Solve for x
x = 42,219,866,380.14/236,688.47 - Step 6: Final answer
x = 178,377.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.