Finding the Fourth Proportional to 225,432.68, 311,106.48 and 124,830.68
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Solution
The fourth proportional to 225,432.68, 311,106.48 and 124,830.68 is: 172,271.53
Step by Step Solution
- Step 1: Write the proportion equation
225,432.68 : 311,106.48 = 124,830.68 : x - Step 2: Convert to fraction form
225,432.68/311,106.48 = 124,830.68/x - Step 3: Cross multiply
225,432.68x = 311,106.48 × 124,830.68 - Step 4: Simplify right side
225,432.68x = 38,835,633,450.81 - Step 5: Solve for x
x = 38,835,633,450.81/225,432.68 - Step 6: Final answer
x = 172,271.53
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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.