Finding the Fourth Proportional to 231,758.76, 319,831.62 and 151,237.80
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Solution
The fourth proportional to 231,758.76, 319,831.62 and 151,237.80 is: 208,711.12
Step by Step Solution
- Step 1: Write the proportion equation
231,758.76 : 319,831.62 = 151,237.80 : x - Step 2: Convert to fraction form
231,758.76/319,831.62 = 151,237.80/x - Step 3: Cross multiply
231,758.76x = 319,831.62 × 151,237.80 - Step 4: Simplify right side
231,758.76x = 48,370,630,579.24 - Step 5: Solve for x
x = 48,370,630,579.24/231,758.76 - Step 6: Final answer
x = 208,711.12
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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.