Finding the Fourth Proportional to 312,601.60, 431,574.24 and 205,358.68
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Solution
The fourth proportional to 312,601.60, 431,574.24 and 205,358.68 is: 283,515.88
Step by Step Solution
- Step 1: Write the proportion equation
312,601.60 : 431,574.24 = 205,358.68 : x - Step 2: Convert to fraction form
312,601.60/431,574.24 = 205,358.68/x - Step 3: Cross multiply
312,601.60x = 431,574.24 × 205,358.68 - Step 4: Simplify right side
312,601.60x = 88,627,516,248.40 - Step 5: Solve for x
x = 88,627,516,248.40/312,601.60 - Step 6: Final answer
x = 283,515.88
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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.