Finding the Fourth Proportional to 258,831.74, 357,132.90 and 163,283.06
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Solution
The fourth proportional to 258,831.74, 357,132.90 and 163,283.06 is: 225,295.99
Step by Step Solution
- Step 1: Write the proportion equation
258,831.74 : 357,132.90 = 163,283.06 : x - Step 2: Convert to fraction form
258,831.74/357,132.90 = 163,283.06/x - Step 3: Cross multiply
258,831.74x = 357,132.90 × 163,283.06 - Step 4: Simplify right side
258,831.74x = 58,313,753,325.35 - Step 5: Solve for x
x = 58,313,753,325.35/258,831.74 - Step 6: Final answer
x = 225,295.99
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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.