Finding the Fourth Proportional to 199,937.12, 299,757.54 and 121,032.68
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Solution
The fourth proportional to 199,937.12, 299,757.54 and 121,032.68 is: 181,459.34
Step by Step Solution
- Step 1: Write the proportion equation
199,937.12 : 299,757.54 = 121,032.68 : x - Step 2: Convert to fraction form
199,937.12/299,757.54 = 121,032.68/x - Step 3: Cross multiply
199,937.12x = 299,757.54 × 121,032.68 - Step 4: Simplify right side
199,937.12x = 36,280,458,416.41 - Step 5: Solve for x
x = 36,280,458,416.41/199,937.12 - Step 6: Final answer
x = 181,459.34
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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.