Finding the Fourth Proportional to 402,511.23, 555,234.21 and 251,345.79
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Solution
The fourth proportional to 402,511.23, 555,234.21 and 251,345.79 is: 346,712.76
Step by Step Solution
- Step 1: Write the proportion equation
402,511.23 : 555,234.21 = 251,345.79 : x - Step 2: Convert to fraction form
402,511.23/555,234.21 = 251,345.79/x - Step 3: Cross multiply
402,511.23x = 555,234.21 × 251,345.79 - Step 4: Simplify right side
402,511.23x = 139,555,781,147.48 - Step 5: Solve for x
x = 139,555,781,147.48/402,511.23 - Step 6: Final answer
x = 346,712.76
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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.