Finding the Fourth Proportional to 247,257.20, 341,196.67 and 138,347.08
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Solution
The fourth proportional to 247,257.20, 341,196.67 and 138,347.08 is: 190,908.75
Step by Step Solution
- Step 1: Write the proportion equation
247,257.20 : 341,196.67 = 138,347.08 : x - Step 2: Convert to fraction form
247,257.20/341,196.67 = 138,347.08/x - Step 3: Cross multiply
247,257.20x = 341,196.67 × 138,347.08 - Step 4: Simplify right side
247,257.20x = 47,203,563,000.22 - Step 5: Solve for x
x = 47,203,563,000.22/247,257.20 - Step 6: Final answer
x = 190,908.75
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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.