Finding the Fourth Proportional to 310,514.80, 465,772.20 and 290,831.80
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Solution
The fourth proportional to 310,514.80, 465,772.20 and 290,831.80 is: 436,247.70
Step by Step Solution
- Step 1: Write the proportion equation
310,514.80 : 465,772.20 = 290,831.80 : x - Step 2: Convert to fraction form
310,514.80/465,772.20 = 290,831.80/x - Step 3: Cross multiply
310,514.80x = 465,772.20 × 290,831.80 - Step 4: Simplify right side
310,514.80x = 135,461,367,315.96 - Step 5: Solve for x
x = 135,461,367,315.96/310,514.80 - Step 6: Final answer
x = 436,247.70
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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.