Finding the Fourth Proportional to 424,651.76, 636,977.68 and 109,108.68
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Solution
The fourth proportional to 424,651.76, 636,977.68 and 109,108.68 is: 163,663.03
Step by Step Solution
- Step 1: Write the proportion equation
424,651.76 : 636,977.68 = 109,108.68 : x - Step 2: Convert to fraction form
424,651.76/636,977.68 = 109,108.68/x - Step 3: Cross multiply
424,651.76x = 636,977.68 × 109,108.68 - Step 4: Simplify right side
424,651.76x = 69,499,793,854.26 - Step 5: Solve for x
x = 69,499,793,854.26/424,651.76 - Step 6: Final answer
x = 163,663.03
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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.