Finding the Fourth Proportional to 217,988.45, 326,848.87 and 84,713.08
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Solution
The fourth proportional to 217,988.45, 326,848.87 and 84,713.08 is: 127,017.62
Step by Step Solution
- Step 1: Write the proportion equation
217,988.45 : 326,848.87 = 84,713.08 : x - Step 2: Convert to fraction form
217,988.45/326,848.87 = 84,713.08/x - Step 3: Cross multiply
217,988.45x = 326,848.87 × 84,713.08 - Step 4: Simplify right side
217,988.45x = 27,688,374,472.22 - Step 5: Solve for x
x = 27,688,374,472.22/217,988.45 - Step 6: Final answer
x = 127,017.62
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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.