Finding the Fourth Proportional to 167,657.70, 251,486.55 and 128,291.70
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Solution
The fourth proportional to 167,657.70, 251,486.55 and 128,291.70 is: 192,437.55
Step by Step Solution
- Step 1: Write the proportion equation
167,657.70 : 251,486.55 = 128,291.70 : x - Step 2: Convert to fraction form
167,657.70/251,486.55 = 128,291.70/x - Step 3: Cross multiply
167,657.70x = 251,486.55 × 128,291.70 - Step 4: Simplify right side
167,657.70x = 32,263,637,026.64 - Step 5: Solve for x
x = 32,263,637,026.64/167,657.70 - Step 6: Final answer
x = 192,437.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.