Finding the Fourth Proportional to 280,840.83, 387,629.99 and 160,053.76
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Solution
The fourth proportional to 280,840.83, 387,629.99 and 160,053.76 is: 220,913.88
Step by Step Solution
- Step 1: Write the proportion equation
280,840.83 : 387,629.99 = 160,053.76 : x - Step 2: Convert to fraction form
280,840.83/387,629.99 = 160,053.76/x - Step 3: Cross multiply
280,840.83x = 387,629.99 × 160,053.76 - Step 4: Simplify right side
280,840.83x = 62,041,637,388.26 - Step 5: Solve for x
x = 62,041,637,388.26/280,840.83 - Step 6: Final answer
x = 220,913.88
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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.