Finding the Fourth Proportional to 217,612.16, 300,326.36 and 122,119.23
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Solution
The fourth proportional to 217,612.16, 300,326.36 and 122,119.23 is: 168,536.65
Step by Step Solution
- Step 1: Write the proportion equation
217,612.16 : 300,326.36 = 122,119.23 : x - Step 2: Convert to fraction form
217,612.16/300,326.36 = 122,119.23/x - Step 3: Cross multiply
217,612.16x = 300,326.36 × 122,119.23 - Step 4: Simplify right side
217,612.16x = 36,675,623,831.90 - Step 5: Solve for x
x = 36,675,623,831.90/217,612.16 - Step 6: Final answer
x = 168,536.65
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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.