Finding the Fourth Proportional to 407,188.08, 561,919.68 and 228,340.08
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Solution
The fourth proportional to 407,188.08, 561,919.68 and 228,340.08 is: 315,109.38
Step by Step Solution
- Step 1: Write the proportion equation
407,188.08 : 561,919.68 = 228,340.08 : x - Step 2: Convert to fraction form
407,188.08/561,919.68 = 228,340.08/x - Step 3: Cross multiply
407,188.08x = 561,919.68 × 228,340.08 - Step 4: Simplify right side
407,188.08x = 128,308,784,684.77 - Step 5: Solve for x
x = 128,308,784,684.77/407,188.08 - Step 6: Final answer
x = 315,109.38
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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.