Finding the Fourth Proportional to 165,728.79, 228,840.66 and 135,106.74
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Solution
The fourth proportional to 165,728.79, 228,840.66 and 135,106.74 is: 186,557.30
Step by Step Solution
- Step 1: Write the proportion equation
165,728.79 : 228,840.66 = 135,106.74 : x - Step 2: Convert to fraction form
165,728.79/228,840.66 = 135,106.74/x - Step 3: Cross multiply
165,728.79x = 228,840.66 × 135,106.74 - Step 4: Simplify right side
165,728.79x = 30,917,915,552.05 - Step 5: Solve for x
x = 30,917,915,552.05/165,728.79 - Step 6: Final answer
x = 186,557.30
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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.