Finding the Fourth Proportional to 305,014.28, 420,919.74 and 169,056.99
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Solution
The fourth proportional to 305,014.28, 420,919.74 and 169,056.99 is: 233,298.67
Step by Step Solution
- Step 1: Write the proportion equation
305,014.28 : 420,919.74 = 169,056.99 : x - Step 2: Convert to fraction form
305,014.28/420,919.74 = 169,056.99/x - Step 3: Cross multiply
305,014.28x = 420,919.74 × 169,056.99 - Step 4: Simplify right side
305,014.28x = 71,159,424,275.98 - Step 5: Solve for x
x = 71,159,424,275.98/305,014.28 - Step 6: Final answer
x = 233,298.67
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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.