Finding the Fourth Proportional to 282,478.73, 423,718.79 and 69,247.58
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Solution
The fourth proportional to 282,478.73, 423,718.79 and 69,247.58 is: 103,871.53
Step by Step Solution
- Step 1: Write the proportion equation
282,478.73 : 423,718.79 = 69,247.58 : x - Step 2: Convert to fraction form
282,478.73/423,718.79 = 69,247.58/x - Step 3: Cross multiply
282,478.73x = 423,718.79 × 69,247.58 - Step 4: Simplify right side
282,478.73x = 29,341,498,343.20 - Step 5: Solve for x
x = 29,341,498,343.20/282,478.73 - Step 6: Final answer
x = 103,871.53
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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.