Finding the Fourth Proportional to 402,442.07, 555,138.79 and 251,276.63
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Solution
The fourth proportional to 402,442.07, 555,138.79 and 251,276.63 is: 346,617.35
Step by Step Solution
- Step 1: Write the proportion equation
402,442.07 : 555,138.79 = 251,276.63 : x - Step 2: Convert to fraction form
402,442.07/555,138.79 = 251,276.63/x - Step 3: Cross multiply
402,442.07x = 555,138.79 × 251,276.63 - Step 4: Simplify right side
402,442.07x = 139,493,402,945.63 - Step 5: Solve for x
x = 139,493,402,945.63/402,442.07 - Step 6: Final answer
x = 346,617.35
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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.