Finding the Fourth Proportional to 303,643.20, 455,464.80 and 93,253.80
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Solution
The fourth proportional to 303,643.20, 455,464.80 and 93,253.80 is: 139,880.70
Step by Step Solution
- Step 1: Write the proportion equation
303,643.20 : 455,464.80 = 93,253.80 : x - Step 2: Convert to fraction form
303,643.20/455,464.80 = 93,253.80/x - Step 3: Cross multiply
303,643.20x = 455,464.80 × 93,253.80 - Step 4: Simplify right side
303,643.20x = 42,473,823,366.24 - Step 5: Solve for x
x = 42,473,823,366.24/303,643.20 - Step 6: Final answer
x = 139,880.70
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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.