Finding the Fourth Proportional to 286,812.26, 395,810.50 and 157,756.18
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Solution
The fourth proportional to 286,812.26, 395,810.50 and 157,756.18 is: 217,708.80
Step by Step Solution
- Step 1: Write the proportion equation
286,812.26 : 395,810.50 = 157,756.18 : x - Step 2: Convert to fraction form
286,812.26/395,810.50 = 157,756.18/x - Step 3: Cross multiply
286,812.26x = 395,810.50 × 157,756.18 - Step 4: Simplify right side
286,812.26x = 62,441,552,483.89 - Step 5: Solve for x
x = 62,441,552,483.89/286,812.26 - Step 6: Final answer
x = 217,708.80
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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.