Finding the Fourth Proportional to 253,831.68, 349,355.52 and 217,614.96
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Solution
The fourth proportional to 253,831.68, 349,355.52 and 217,614.96 is: 299,509.45
Step by Step Solution
- Step 1: Write the proportion equation
253,831.68 : 349,355.52 = 217,614.96 : x - Step 2: Convert to fraction form
253,831.68/349,355.52 = 217,614.96/x - Step 3: Cross multiply
253,831.68x = 349,355.52 × 217,614.96 - Step 4: Simplify right side
253,831.68x = 76,024,987,510.58 - Step 5: Solve for x
x = 76,024,987,510.58/253,831.68 - Step 6: Final answer
x = 299,509.45
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1.5x scale
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.