Finding the Fourth Proportional to 245,257.23, 338,485.04 and 137,831.79
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Solution
The fourth proportional to 245,257.23, 338,485.04 and 137,831.79 is: 190,224.76
Step by Step Solution
- Step 1: Write the proportion equation
245,257.23 : 338,485.04 = 137,831.79 : x - Step 2: Convert to fraction form
245,257.23/338,485.04 = 137,831.79/x - Step 3: Cross multiply
245,257.23x = 338,485.04 × 137,831.79 - Step 4: Simplify right side
245,257.23x = 46,653,998,262.26 - Step 5: Solve for x
x = 46,653,998,262.26/245,257.23 - Step 6: Final answer
x = 190,224.76
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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.