Finding the Fourth Proportional to 292,394.37, 438,238.35 and 142,409.91
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Solution
The fourth proportional to 292,394.37, 438,238.35 and 142,409.91 is: 213,442.84
Step by Step Solution
- Step 1: Write the proportion equation
292,394.37 : 438,238.35 = 142,409.91 : x - Step 2: Convert to fraction form
292,394.37/438,238.35 = 142,409.91/x - Step 3: Cross multiply
292,394.37x = 438,238.35 × 142,409.91 - Step 4: Simplify right side
292,394.37x = 62,409,483,982.05 - Step 5: Solve for x
x = 62,409,483,982.05/292,394.37 - Step 6: Final answer
x = 213,442.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.