Finding the Fourth Proportional to 217,089.60, 325,637.76 and 76,750.08
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Solution
The fourth proportional to 217,089.60, 325,637.76 and 76,750.08 is: 115,126.31
Step by Step Solution
- Step 1: Write the proportion equation
217,089.60 : 325,637.76 = 76,750.08 : x - Step 2: Convert to fraction form
217,089.60/325,637.76 = 76,750.08/x - Step 3: Cross multiply
217,089.60x = 325,637.76 × 76,750.08 - Step 4: Simplify right side
217,089.60x = 24,992,724,131.02 - Step 5: Solve for x
x = 24,992,724,131.02/217,089.60 - Step 6: Final answer
x = 115,126.31
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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.