Finding the Fourth Proportional to 205,774.50, 283,979.84 and 115,125.06
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Solution
The fourth proportional to 205,774.50, 283,979.84 and 115,125.06 is: 158,878.75
Step by Step Solution
- Step 1: Write the proportion equation
205,774.50 : 283,979.84 = 115,125.06 : x - Step 2: Convert to fraction form
205,774.50/283,979.84 = 115,125.06/x - Step 3: Cross multiply
205,774.50x = 283,979.84 × 115,125.06 - Step 4: Simplify right side
205,774.50x = 32,693,196,118.79 - Step 5: Solve for x
x = 32,693,196,118.79/205,774.50 - Step 6: Final answer
x = 158,878.75
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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.