Finding the Fourth Proportional to 251,223.40, 376,397.70 and 162,431.20
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Solution
The fourth proportional to 251,223.40, 376,397.70 and 162,431.20 is: 243,363.99
Step by Step Solution
- Step 1: Write the proportion equation
251,223.40 : 376,397.70 = 162,431.20 : x - Step 2: Convert to fraction form
251,223.40/376,397.70 = 162,431.20/x - Step 3: Cross multiply
251,223.40x = 376,397.70 × 162,431.20 - Step 4: Simplify right side
251,223.40x = 61,138,730,088.24 - Step 5: Solve for x
x = 61,138,730,088.24/251,223.40 - Step 6: Final answer
x = 243,363.99
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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.