Finding the Fourth Proportional to 312,156.24, 430,670.17 and 203,210.84
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Solution
The fourth proportional to 312,156.24, 430,670.17 and 203,210.84 is: 280,362.32
Step by Step Solution
- Step 1: Write the proportion equation
312,156.24 : 430,670.17 = 203,210.84 : x - Step 2: Convert to fraction form
312,156.24/430,670.17 = 203,210.84/x - Step 3: Cross multiply
312,156.24x = 430,670.17 × 203,210.84 - Step 4: Simplify right side
312,156.24x = 87,516,847,008.64 - Step 5: Solve for x
x = 87,516,847,008.64/312,156.24 - Step 6: Final answer
x = 280,362.32
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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.