Finding the Fourth Proportional to 236,963.21, 327,009.20 and 129,533.66
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Solution
The fourth proportional to 236,963.21, 327,009.20 and 129,533.66 is: 178,756.44
Step by Step Solution
- Step 1: Write the proportion equation
236,963.21 : 327,009.20 = 129,533.66 : x - Step 2: Convert to fraction form
236,963.21/327,009.20 = 129,533.66/x - Step 3: Cross multiply
236,963.21x = 327,009.20 × 129,533.66 - Step 4: Simplify right side
236,963.21x = 42,358,700,041.30 - Step 5: Solve for x
x = 42,358,700,041.30/236,963.21 - Step 6: Final answer
x = 178,756.44
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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.