Finding the Fourth Proportional to 356,400.08, 491,831.94 and 213,160.12
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Solution
The fourth proportional to 356,400.08, 491,831.94 and 213,160.12 is: 294,160.86
Step by Step Solution
- Step 1: Write the proportion equation
356,400.08 : 491,831.94 = 213,160.12 : x - Step 2: Convert to fraction form
356,400.08/491,831.94 = 213,160.12/x - Step 3: Cross multiply
356,400.08x = 491,831.94 × 213,160.12 - Step 4: Simplify right side
356,400.08x = 104,838,955,350.23 - Step 5: Solve for x
x = 104,838,955,350.23/356,400.08 - Step 6: Final answer
x = 294,160.86
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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.