Finding the Fourth Proportional to 430,586.28, 645,460.38 and 205,888.68
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Solution
The fourth proportional to 430,586.28, 645,460.38 and 205,888.68 is: 308,632.65
Step by Step Solution
- Step 1: Write the proportion equation
430,586.28 : 645,460.38 = 205,888.68 : x - Step 2: Convert to fraction form
430,586.28/645,460.38 = 205,888.68/x - Step 3: Cross multiply
430,586.28x = 645,460.38 × 205,888.68 - Step 4: Simplify right side
430,586.28x = 132,892,985,630.50 - Step 5: Solve for x
x = 132,892,985,630.50/430,586.28 - Step 6: Final answer
x = 308,632.65
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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.