Finding the Fourth Proportional to 225,069.60, 310,634.24 and 129,631.52
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Solution
The fourth proportional to 225,069.60, 310,634.24 and 129,631.52 is: 178,913.49
Step by Step Solution
- Step 1: Write the proportion equation
225,069.60 : 310,634.24 = 129,631.52 : x - Step 2: Convert to fraction form
225,069.60/310,634.24 = 129,631.52/x - Step 3: Cross multiply
225,069.60x = 310,634.24 × 129,631.52 - Step 4: Simplify right side
225,069.60x = 40,267,988,695.24 - Step 5: Solve for x
x = 40,267,988,695.24/225,069.60 - Step 6: Final answer
x = 178,913.49
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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.