Finding the Fourth Proportional to 154,632.68, 212,918.58 and 135,402.44
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Solution
The fourth proportional to 154,632.68, 212,918.58 and 135,402.44 is: 186,439.86
Step by Step Solution
- Step 1: Write the proportion equation
154,632.68 : 212,918.58 = 135,402.44 : x - Step 2: Convert to fraction form
154,632.68/212,918.58 = 135,402.44/x - Step 3: Cross multiply
154,632.68x = 212,918.58 × 135,402.44 - Step 4: Simplify right side
154,632.68x = 28,829,695,253.34 - Step 5: Solve for x
x = 28,829,695,253.34/154,632.68 - Step 6: Final answer
x = 186,439.86
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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.