Finding the Fourth Proportional to 251,285.24, 346,774.76 and 138,115.28
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Solution
The fourth proportional to 251,285.24, 346,774.76 and 138,115.28 is: 190,599.70
Step by Step Solution
- Step 1: Write the proportion equation
251,285.24 : 346,774.76 = 138,115.28 : x - Step 2: Convert to fraction form
251,285.24/346,774.76 = 138,115.28/x - Step 3: Cross multiply
251,285.24x = 346,774.76 × 138,115.28 - Step 4: Simplify right side
251,285.24x = 47,894,890,649.88 - Step 5: Solve for x
x = 47,894,890,649.88/251,285.24 - Step 6: Final answer
x = 190,599.70
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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.