Finding the Fourth Proportional to 291,907.14, 402,831.68 and 157,771.14
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Solution
The fourth proportional to 291,907.14, 402,831.68 and 157,771.14 is: 217,724.08
Step by Step Solution
- Step 1: Write the proportion equation
291,907.14 : 402,831.68 = 157,771.14 : x - Step 2: Convert to fraction form
291,907.14/402,831.68 = 157,771.14/x - Step 3: Cross multiply
291,907.14x = 402,831.68 × 157,771.14 - Step 4: Simplify right side
291,907.14x = 63,555,212,592.86 - Step 5: Solve for x
x = 63,555,212,592.86/291,907.14 - Step 6: Final answer
x = 217,724.08
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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.