Finding the Fourth Proportional to 219,789.74, 329,711.07 and 77,605.79
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Solution
The fourth proportional to 219,789.74, 329,711.07 and 77,605.79 is: 116,418.02
Step by Step Solution
- Step 1: Write the proportion equation
219,789.74 : 329,711.07 = 77,605.79 : x - Step 2: Convert to fraction form
219,789.74/329,711.07 = 77,605.79/x - Step 3: Cross multiply
219,789.74x = 329,711.07 × 77,605.79 - Step 4: Simplify right side
219,789.74x = 25,587,486,410.54 - Step 5: Solve for x
x = 25,587,486,410.54/219,789.74 - Step 6: Final answer
x = 116,418.02
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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.