Finding the Fourth Proportional to 243,358.52, 335,831.22 and 135,930.08
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Solution
The fourth proportional to 243,358.52, 335,831.22 and 135,930.08 is: 187,581.53
Step by Step Solution
- Step 1: Write the proportion equation
243,358.52 : 335,831.22 = 135,930.08 : x - Step 2: Convert to fraction form
243,358.52/335,831.22 = 135,930.08/x - Step 3: Cross multiply
243,358.52x = 335,831.22 × 135,930.08 - Step 4: Simplify right side
243,358.52x = 45,649,564,601.10 - Step 5: Solve for x
x = 45,649,564,601.10/243,358.52 - Step 6: Final answer
x = 187,581.53
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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.