Finding the Fourth Proportional to 278,160.08, 417,055.77 and 100,643.99
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Solution
The fourth proportional to 278,160.08, 417,055.77 and 100,643.99 is: 150,899.28
Step by Step Solution
- Step 1: Write the proportion equation
278,160.08 : 417,055.77 = 100,643.99 : x - Step 2: Convert to fraction form
278,160.08/417,055.77 = 100,643.99/x - Step 3: Cross multiply
278,160.08x = 417,055.77 × 100,643.99 - Step 4: Simplify right side
278,160.08x = 41,974,154,660.04 - Step 5: Solve for x
x = 41,974,154,660.04/278,160.08 - Step 6: Final answer
x = 150,899.28
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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.