Finding the Fourth Proportional to 380,315.12, 570,438.66 and 114,135.08
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Solution
The fourth proportional to 380,315.12, 570,438.66 and 114,135.08 is: 171,192.41
Step by Step Solution
- Step 1: Write the proportion equation
380,315.12 : 570,438.66 = 114,135.08 : x - Step 2: Convert to fraction form
380,315.12/570,438.66 = 114,135.08/x - Step 3: Cross multiply
380,315.12x = 570,438.66 × 114,135.08 - Step 4: Simplify right side
380,315.12x = 65,107,062,094.19 - Step 5: Solve for x
x = 65,107,062,094.19/380,315.12 - Step 6: Final answer
x = 171,192.41
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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.