Finding the Fourth Proportional to 430,065.87, 644,672.68 and 201,953.13
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Solution
The fourth proportional to 430,065.87, 644,672.68 and 201,953.13 is: 302,729.59
Step by Step Solution
- Step 1: Write the proportion equation
430,065.87 : 644,672.68 = 201,953.13 : x - Step 2: Convert to fraction form
430,065.87/644,672.68 = 201,953.13/x - Step 3: Cross multiply
430,065.87x = 644,672.68 × 201,953.13 - Step 4: Simplify right side
430,065.87x = 130,193,665,551.49 - Step 5: Solve for x
x = 130,193,665,551.49/430,065.87 - Step 6: Final answer
x = 302,729.59
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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.