Finding the Fourth Proportional to 217,276.34, 299,840.40 and 121,783.05
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Solution
The fourth proportional to 217,276.34, 299,840.40 and 121,783.05 is: 168,060.08
Step by Step Solution
- Step 1: Write the proportion equation
217,276.34 : 299,840.40 = 121,783.05 : x - Step 2: Convert to fraction form
217,276.34/299,840.40 = 121,783.05/x - Step 3: Cross multiply
217,276.34x = 299,840.40 × 121,783.05 - Step 4: Simplify right side
217,276.34x = 36,515,478,425.22 - Step 5: Solve for x
x = 36,515,478,425.22/217,276.34 - Step 6: Final answer
x = 168,060.08
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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.