Finding the Fourth Proportional to 293,447.20, 440,170.80 and 71,831.20
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Solution
The fourth proportional to 293,447.20, 440,170.80 and 71,831.20 is: 107,746.80
Step by Step Solution
- Step 1: Write the proportion equation
293,447.20 : 440,170.80 = 71,831.20 : x - Step 2: Convert to fraction form
293,447.20/440,170.80 = 71,831.20/x - Step 3: Cross multiply
293,447.20x = 440,170.80 × 71,831.20 - Step 4: Simplify right side
293,447.20x = 31,617,996,768.96 - Step 5: Solve for x
x = 31,617,996,768.96/293,447.20 - Step 6: Final answer
x = 107,746.80
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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.