Finding the Fourth Proportional to 329,436.11, 454,282.40 and 281,846.99
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Solution
The fourth proportional to 329,436.11, 454,282.40 and 281,846.99 is: 388,658.45
Step by Step Solution
- Step 1: Write the proportion equation
329,436.11 : 454,282.40 = 281,846.99 : x - Step 2: Convert to fraction form
329,436.11/454,282.40 = 281,846.99/x - Step 3: Cross multiply
329,436.11x = 454,282.40 × 281,846.99 - Step 4: Simplify right side
329,436.11x = 128,038,125,483.18 - Step 5: Solve for x
x = 128,038,125,483.18/329,436.11 - Step 6: Final answer
x = 388,658.45
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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.