Finding the Fourth Proportional to 272,440.21, 375,961.62 and 157,723.71
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Solution
The fourth proportional to 272,440.21, 375,961.62 and 157,723.71 is: 217,655.32
Step by Step Solution
- Step 1: Write the proportion equation
272,440.21 : 375,961.62 = 157,723.71 : x - Step 2: Convert to fraction form
272,440.21/375,961.62 = 157,723.71/x - Step 3: Cross multiply
272,440.21x = 375,961.62 × 157,723.71 - Step 4: Simplify right side
272,440.21x = 59,298,061,524.01 - Step 5: Solve for x
x = 59,298,061,524.01/272,440.21 - Step 6: Final answer
x = 217,655.32
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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.