Finding the Fourth Proportional to 217,406.20, 326,223.32 and 157,926.08
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Solution
The fourth proportional to 217,406.20, 326,223.32 and 157,926.08 is: 236,971.95
Step by Step Solution
- Step 1: Write the proportion equation
217,406.20 : 326,223.32 = 157,926.08 : x - Step 2: Convert to fraction form
217,406.20/326,223.32 = 157,926.08/x - Step 3: Cross multiply
217,406.20x = 326,223.32 × 157,926.08 - Step 4: Simplify right side
217,406.20x = 51,519,170,132.19 - Step 5: Solve for x
x = 51,519,170,132.19/217,406.20 - Step 6: Final answer
x = 236,971.95
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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.