Finding the Fourth Proportional to 328,885.79, 453,950.12 and 185,729.63
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Solution
The fourth proportional to 328,885.79, 453,950.12 and 185,729.63 is: 256,356.43
Step by Step Solution
- Step 1: Write the proportion equation
328,885.79 : 453,950.12 = 185,729.63 : x - Step 2: Convert to fraction form
328,885.79/453,950.12 = 185,729.63/x - Step 3: Cross multiply
328,885.79x = 453,950.12 × 185,729.63 - Step 4: Simplify right side
328,885.79x = 84,311,986,020.63 - Step 5: Solve for x
x = 84,311,986,020.63/328,885.79 - Step 6: Final answer
x = 256,356.43
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1.5x scale
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.