Finding the Fourth Proportional to 354,754.80, 489,566.16 and 209,565.36
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Solution
The fourth proportional to 354,754.80, 489,566.16 and 209,565.36 is: 289,202.88
Step by Step Solution
- Step 1: Write the proportion equation
354,754.80 : 489,566.16 = 209,565.36 : x - Step 2: Convert to fraction form
354,754.80/489,566.16 = 209,565.36/x - Step 3: Cross multiply
354,754.80x = 489,566.16 × 209,565.36 - Step 4: Simplify right side
354,754.80x = 102,596,108,564.22 - Step 5: Solve for x
x = 102,596,108,564.22/354,754.80 - Step 6: Final answer
x = 289,202.88
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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.