Finding the Fourth Proportional to 328,283.24, 492,477.56 and 138,745.48
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Solution
The fourth proportional to 328,283.24, 492,477.56 and 138,745.48 is: 208,140.49
Step by Step Solution
- Step 1: Write the proportion equation
328,283.24 : 492,477.56 = 138,745.48 : x - Step 2: Convert to fraction form
328,283.24/492,477.56 = 138,745.48/x - Step 3: Cross multiply
328,283.24x = 492,477.56 × 138,745.48 - Step 4: Simplify right side
328,283.24x = 68,329,035,451.43 - Step 5: Solve for x
x = 68,329,035,451.43/328,283.24 - Step 6: Final answer
x = 208,140.49
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1.5x scale
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.