Finding the Fourth Proportional to 351,451.14, 485,038.37 and 253,415.03
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Solution
The fourth proportional to 351,451.14, 485,038.37 and 253,415.03 is: 349,738.55
Step by Step Solution
- Step 1: Write the proportion equation
351,451.14 : 485,038.37 = 253,415.03 : x - Step 2: Convert to fraction form
351,451.14/485,038.37 = 253,415.03/x - Step 3: Cross multiply
351,451.14x = 485,038.37 × 253,415.03 - Step 4: Simplify right side
351,451.14x = 122,916,011,293.05 - Step 5: Solve for x
x = 122,916,011,293.05/351,451.14 - Step 6: Final answer
x = 349,738.55
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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.