Finding the Fourth Proportional to 213,354.54, 294,438.21 and 122,710.53
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Solution
The fourth proportional to 213,354.54, 294,438.21 and 122,710.53 is: 169,345.68
Step by Step Solution
- Step 1: Write the proportion equation
213,354.54 : 294,438.21 = 122,710.53 : x - Step 2: Convert to fraction form
213,354.54/294,438.21 = 122,710.53/x - Step 3: Cross multiply
213,354.54x = 294,438.21 × 122,710.53 - Step 4: Simplify right side
213,354.54x = 36,130,668,801.35 - Step 5: Solve for x
x = 36,130,668,801.35/213,354.54 - Step 6: Final answer
x = 169,345.68
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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.