Finding the Fourth Proportional to 329,771.66, 455,512.01 and 243,905.18
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Solution
The fourth proportional to 329,771.66, 455,512.01 and 243,905.18 is: 336,905.05
Step by Step Solution
- Step 1: Write the proportion equation
329,771.66 : 455,512.01 = 243,905.18 : x - Step 2: Convert to fraction form
329,771.66/455,512.01 = 243,905.18/x - Step 3: Cross multiply
329,771.66x = 455,512.01 × 243,905.18 - Step 4: Simplify right side
329,771.66x = 111,101,735,294.13 - Step 5: Solve for x
x = 111,101,735,294.13/329,771.66 - Step 6: Final answer
x = 336,905.05
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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.