Finding the Fourth Proportional to 372,390.97, 513,831.55 and 243,295.09
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Solution
The fourth proportional to 372,390.97, 513,831.55 and 243,295.09 is: 335,702.81
Step by Step Solution
- Step 1: Write the proportion equation
372,390.97 : 513,831.55 = 243,295.09 : x - Step 2: Convert to fraction form
372,390.97/513,831.55 = 243,295.09/x - Step 3: Cross multiply
372,390.97x = 513,831.55 × 243,295.09 - Step 4: Simplify right side
372,390.97x = 125,012,694,655.75 - Step 5: Solve for x
x = 125,012,694,655.75/372,390.97 - Step 6: Final answer
x = 335,702.81
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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.