Finding the Fourth Proportional to 189,316.84, 261,257.98 and 103,277.65
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Solution
The fourth proportional to 189,316.84, 261,257.98 and 103,277.65 is: 142,523.56
Step by Step Solution
- Step 1: Write the proportion equation
189,316.84 : 261,257.98 = 103,277.65 : x - Step 2: Convert to fraction form
189,316.84/261,257.98 = 103,277.65/x - Step 3: Cross multiply
189,316.84x = 261,257.98 × 103,277.65 - Step 4: Simplify right side
189,316.84x = 26,982,110,218.15 - Step 5: Solve for x
x = 26,982,110,218.15/189,316.84 - Step 6: Final answer
x = 142,523.56
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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.