Finding the Fourth Proportional to 268,237.10, 401,699.55 and 127,831.70
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Solution
The fourth proportional to 268,237.10, 401,699.55 and 127,831.70 is: 191,434.88
Step by Step Solution
- Step 1: Write the proportion equation
268,237.10 : 401,699.55 = 127,831.70 : x - Step 2: Convert to fraction form
268,237.10/401,699.55 = 127,831.70/x - Step 3: Cross multiply
268,237.10x = 401,699.55 × 127,831.70 - Step 4: Simplify right side
268,237.10x = 51,349,936,365.74 - Step 5: Solve for x
x = 51,349,936,365.74/268,237.10 - Step 6: Final answer
x = 191,434.88
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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.