Finding the Fourth Proportional to 351,465.14, 485,021.02 and 190,320.18
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Solution
The fourth proportional to 351,465.14, 485,021.02 and 190,320.18 is: 262,641.38
Step by Step Solution
- Step 1: Write the proportion equation
351,465.14 : 485,021.02 = 190,320.18 : x - Step 2: Convert to fraction form
351,465.14/485,021.02 = 190,320.18/x - Step 3: Cross multiply
351,465.14x = 485,021.02 × 190,320.18 - Step 4: Simplify right side
351,465.14x = 92,309,287,830.18 - Step 5: Solve for x
x = 92,309,287,830.18/351,465.14 - Step 6: Final answer
x = 262,641.38
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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.