Finding the Fourth Proportional to 302,351.81, 417,248.63 and 173,287.49
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Solution
The fourth proportional to 302,351.81, 417,248.63 and 173,287.49 is: 239,138.53
Step by Step Solution
- Step 1: Write the proportion equation
302,351.81 : 417,248.63 = 173,287.49 : x - Step 2: Convert to fraction form
302,351.81/417,248.63 = 173,287.49/x - Step 3: Cross multiply
302,351.81x = 417,248.63 × 173,287.49 - Step 4: Simplify right side
302,351.81x = 72,303,967,798.64 - Step 5: Solve for x
x = 72,303,967,798.64/302,351.81 - Step 6: Final answer
x = 239,138.53
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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.